3 liters.
-2
Isotope A.
82 protons.
Shorter half-life indicates higher radioactivity.
Water.
The Latin word 'acidus', which means 'sour'.
A hydroxide ion.
The presence of acids.
Sodium hydroxide (NaOH).
Greater than 7.
The series of transformations that a radioactive isotope undergoes until it reaches a stable state.
Temperature decreases.
A sheet of aluminum.
The time required for half of the radioactive atoms in a sample to decay.
Several centimeters.
11.
Magnetic Resonance Imaging.
Tetra-.
Nausea, headaches, pain or burning at the injection site, hives, or itchy eyes.
Osteoporosis.
Higher than 7.
Using pH indicators and pH meters.
Definite volume but no definite shape.
By using the formula 3/163.
Sulfuric acid (H2SO4) reacting with potassium hydroxide (KOH) to produce potassium sulfate (K2SO4) and water (H2O).
Highly focused beams of gamma rays are directed at a tumor.
Thin films of vaporized materials develop on various surfaces.
Take the logarithm of the hydronium ion concentration and negate it.
As the negative logarithm of the hydronium ion concentration.
The number of neutrons in an atom.
It increases the concentration of hydroxide ions.
1.0 x 10^-7 M.
6 grams (2g/L * 3L).
Pure energy.
Gamma rays.
A basic solution has a higher concentration of hydroxide ions than hydronium ions.
The concentration of hydronium ions decreases.
They neutralize the hydronium ions.
Melting.
It has a bent overall structure.
Amphoteric.
A particle that can penetrate fairly deeply into skin and has the potential to harm or kill living cells.
Less blood is lost when tumors are destroyed.
Partial positive charges on the hydrogens and a partial negative charge on the oxygen.
By adding an acid to water.
Solid, Liquid, Gas.
pH = 7.
Radioactivity.
Approximately 0.3123
Yes, every element has at least one radioactive isotope or radioisotope.
Having unstable nuclei.
Petites Curies.
It refers to ultra-high energy lead blocks, often used for shielding against radiation.
Moles = mass (g) / molar mass (g/mol) = 35.00g / 40.00g/mol = 0.88 moles.
Typically ranges from 0 to 14, with 7 being neutral.
Atoms were believed to be inert, indivisible, and solid.
Radioactive decay.
No definite shape or volume; expands to fill its container.
Water is a polar molecule.
It has a higher concentration of hydronium ions than hydroxide ions.
They can cause significant damage to the surface.
30.
Oxygen is better at attracting electrons than hydrogen.
They consist of helium nuclei and have low penetration power.
H₂O.
To maintain adequate air quality and reduce radon concentration.
Neutral, acidic, or basic.
92.
Liquid droplets.
It absorbs excess body heat, which is released into the atmosphere.
Ca: 2+ with two F: - each, represented as Ca[F][F].
Sodium hydroxide (NaOH).
Shorter half-lives result in more radioactivity per amount detected.
Molarity or moles per liter.
They can be replaced by new cells.
Isotope A (10 seconds).
Deposition.
A phase of matter where gases are ionized and conduct electricity.
They become part of the material they are in, like any other electron.
Merely by their atomic mass number.
The more acidic a solution is, the higher its hydronium ion concentration and the lower its pH.
It is heated as it absorbs radiation from these isotopes, powering volcanoes, geysers, and hot springs.
No, they only affect physical appearance.
They can move around within a certain distance from other particles.
To cool off through sweating.
Rads (radiation absorbed dose).
Three isotopes.
It has a high specific heat capacity.
Radiation was not dependent on the organization of atoms at the molecular level; it was happening inside the atom itself.
Evaporative cooling.
A neutral solution is obtained.
Inform their radiologist in advance.
By accelerating electrons from the cathode that carry high kinetic energy.
It markedly lengthens the shelf life by killing microorganisms that cause spoilage.
The number of protons in each element listed in the periodic table.
The genetic code of the individual's offspring may retain the mutation.
Alpha particles.
To kill bacteria and parasites, extending the shelf life and safety of the food.
They can harm or kill living cells.
Sodium ions and hydroxide ions.
The number of electrons it has.
The phase change from a solid to a gas.
On the surface of a solid when the temperature is low.
A single negative charge (-1).
[H3O+] = 0.0000001 M = 10–7 M.
Draw the outermost electron shell showing carbon with four electrons and two oxygen atoms each with six electrons, forming double bonds.
People in brick, concrete, or stone buildings are exposed to greater amounts of radiation than those in wooden buildings.
One rad is equal to 0.01 J of radiant energy absorbed per kilogram of tissue.
92 protons.
They all have 1 proton in their nucleus.
Basic Chemistry.
Its polarity.
Nuclear radiation.
H2O.
All atoms of an element are identical and have the same mass.
A hydrogen ion.
High-frequency electromagnetic radiation emitted by radioactive elements.
Plasma sputter bombardment or high-temperature vacuum evaporation.
1.0 x 10^-4 M.
The phenomenon where some isotopes have unstable nuclei that spontaneously disintegrate, releasing high energy particles and/or electromagnetic radiation.
The acidity or basicity of a solution.
The phase change from a gas/vapor to a liquid.
Acid (donates H+).
It increases with temperature.
High energy particles and/or high energy electromagnetic radiation.
Significant quantities of radioactive isotopes, primarily trace amounts of uranium.
They differ only in mass, not electric charge.
Draw magnesium with two electrons and two chlorine atoms each with seven electrons, forming ionic bonds.
It dissolves, but the covalent bonds within glucose molecules do not dissociate.
Less than 7.
Greater than 7.
Any material made of only one type of atom.
25% of the original sample.
If the dose is spread over a long period of time, allowing intervals for healing.
Using the formula C1V1 = C2V2.
It converts to electromagnetic radiation (X-ray).
Definite shape and volume.
Acidic, Basic, or Neutral.
A. increases.
It seems to be a typographical error; possibly referring to 'ionic bond' or another type of bond.
Water is an excellent solvent.
0 degrees Celsius.
The hydroxide ion concentration necessarily decreases.
Intermolecular forces.
It represents molar concentrations.
Solid, liquid, and gas.
Beta particles can penetrate matter to a greater depth than alpha particles.
Because CH3COO- is less able to accommodate the negative charge.
The total number of hydronium ions is the same as the total number of hydroxide ions.
It indicates an acidic solution.
Al: 3+ with three O: - each, represented as Al[O][O][O].
By multiplying the number of rads by a factor corresponding to different health effects of radiation.
The combination of two protons and two neutrons; it is the nucleus of the helium atom.
2 (the atomic number of helium).
Because electrons are much less massive than the nucleus.
Different atoms of elements combined together in a fixed ratio.
It retains altered genetic information, producing a mutation.
Only 3 are stable.
264 stable isotopes.
Beta particles, as they can penetrate the skin more effectively than alpha particles.
Element.
Rows that indicate the number of electron shells in the elements.
A branch of medicine that uses imaging technology to diagnose and treat disease.
Gamma rays emitted by cobalt-60 or cesium-137.
A beta particle is an electron ejected from a nucleus.
As milligrams of solute per liter of solution.
Because it can carry nutrients, such as those in blood.
Basic.
It increases the particles' kinetic energy.
It is converted from liquid form to steam.
Because Cl- can accommodate the negative charge well.
Cross-sectional images or 'slices' of internal organs, blood vessels, soft tissues, and bones.
pH less than 7.
pH = -log[H3O+] = -log(2.0 x 10^-9) = 8.70.
Yes, most kinds of molecular damage can be repaired if the radiation is not too severe.
They have no mass or electric charge and possess high energies.
Radioactive isotopes or radioisotopes.
Gamma rays are more harmful than alpha or beta particles.
Lead-208.
Light materials such as paper.
10 years.
Sodium (Na) and Chlorine (Cl).
Both are called 10 rems.
Beta particles.
500 rems.
A super-large number, 6.02 × 10^23, used to measure numbers of atoms or molecules.
115.
N≡N (triple bond between two nitrogen atoms).
Au.
Solid, liquid, gas, and plasma.
By adding a base to water.
Hydrochloric acid (HCl) reacting with sodium hydroxide (NaOH) to form sodium chloride (NaCl) and water (H2O).
No, the food does not become radioactive because gamma rays do not make the food itself radioactive; they kill bacteria and parasites without altering the food's atomic structure.
The acidity of a solution.
Ionic bond.
It separates into sodium and chloride ions.
Alpha, Beta, and Gamma rays.
H₃PO₄.
Beta rays are high-energy, high-speed electrons or positrons.
238 nucleons.
Implement corrective measures such as sealing and ventilation.
Yes, isotopes share many characteristics despite differing in mass.
That it destroyed diseased cells faster than healthy cells.
No, they do not dissociate.
Positive charge (+).
0.25M.
Any material made of only one type of atom.
Clinical studies on different types of radiation.
One-fourth of the original amount.
0.33 mol.
Electromagnetic radiation.
Cells that do not function as well as unaffected ones, potentially leading to cancer.
Water's adhesive properties.
A collection of two or more pure substances that are physically mixed.
Gamma rays have much greater energy than visible light, ultraviolet light, or X-rays.
A weak attraction between a hydrogen atom and an electronegative atom.
Temperature increases.
They spontaneously decay to become more stable.
Physical changes.
65/163.
Atoms of the same element that contain the same number of protons but different numbers of neutrons in the nucleus.
[H₃O⁺] = [OH⁻].
pH = – log(10⁻⁷).
The acidity or alkalinity of a solution.
The hydronium ion concentration equals the hydroxide ion concentration.
pH 7.
Diagnosing tumors, investigating internal bleeding, checking for internal injuries or damage, and assisting in tissue or fluid biopsies.
99.985%.
Polonium and radium.
They form a crystalline structure, making ice less dense than liquid water.
The total mass of the atom(s), including protons, neutrons, and electrons.
12 g/mol.
They suffer structural damage.
Mixture.
NaCl (Sodium Chloride).
It has the same biological effect as 10 rads of beta particles.
Element symbols, atomic numbers, and atomic masses.
Black, because air absorbs the least radiation.
Element's symbol, atomic number, and atomic mass.
They are involved in chemical bonding.
[H3O+] = [OH–].
Rows that represent elements with increasing atomic numbers.
Only a fraction of 1 rem.
A group.
A combination of two or more substances that retain their individual properties.
A period.
Ammonia.
2 grams of sucrose per liter of solution.
Water can behave as an acid or a base.
They pick up electrons and become harmless helium.
Parts per million.
Hydronium ions (H3O+).
They behave similarly (although not identically).
The pH is 9.
Yes, they are reversible.
Kinetic energy decreases, leading to reduced movement and more collisions.
More than 1 meter.
Salt and water.
Hydrogen-1.
Concentration (M) = moles / volume (L) = 0.50mol / 2.00L = 0.25 M.
8 ml.
Rems.
Neutralization.
Nausea, headaches, pain or burning at the injection site, hives, or itchy eyes.
Unstable nuclei.
No, it is not fully understood.
10 seconds.
They are usually insignificant.
White, because calcium in bones absorbs X-rays the most.
A pure material consists of only a single element or a single compound.
Checking for fractures, spotting pneumonia, and mammograms for breast cancer.
Radioactive, colorless, odorless, and tasteless gas.
Columns that contain elements with similar chemical behaviors.
It has the ability to form crystals.
An atom.
It becomes a negatively charged ion (anion).
Millirem (mrem).
H₂O.
An element is any material made of only one type of atom.
C₆H₁₂O₆.
The calcium atom has 2 valence electrons, while the calcium ion has lost those 2 electrons.
The World Health Organization.
NaCl.
It allows for the formation of a stable molecule essential for life.
A type of chemical bond where atoms share electrons.
Lower than 7.
7.
Radioactive isotopes found in the Earth's crust.
Water can behave as both an acid and a base.
They neutralize the hydroxide ions.
[H₃O⁺] = 0.0000001 M = 10⁻⁷ M.
Sealing the basement floor and walls.
By mass number, which is the total number of protons and neutrons in the nucleus.
The stability of the negative ion that remains after the proton has been donated.
[H3O+] = [OH–].
To allow surgeons to X-ray wounded soldiers and operate more accurately.
Sodium chloride (NaCl), or table salt.
Because it contains equal numbers of hydronium and hydroxide ions.
pH greater than 7.
Basic, since pH > 7.
Negative charge (-).
Half of the sample will be converted into other elements.
0.004M (Option C).
Sodium hydroxide (NaOH).
Water molecules have strong cohesive forces due to their ability to form hydrogen bonds with one another.
Because different tissues absorb different amounts of radiation.
A unit of absorbed radiation dose.
Dissolving.
About 50%.
A mole.
The neutron has about the same mass as the proton.
An electron transfer occurs, resulting in the formation of two oppositely charged ions.
Cancer treatment.
Atomic mass = number of neutrons + number of protons.
It has no net electric charge.
Mass = N (neutrons) + P (protons).
Because it is electrically neutral.
Outermost electron shell.
Alkaline.
In the atomic nucleus.
The molar concentration of hydronium ions.
Radioactivity.
They increase in kinetic energy, speed up, and move farther apart.
A beta particle is normally faster than an alpha particle.
Radioisotopes that are not found in nature.
Water has a high heat of vaporization.
A thin sheet of plastic or metal (such as aluminum).
Neutralization.
An atom that has lost or gained one or more electrons.
0 to 14.
Pure water.
Hydrochloric acid (HCl).
To make the particular organ or tissue under study more visible.
It indicates a basic (alkaline) solution.
0.5L.
It allows small objects to float and insects to walk on its surface.
They balance each other, producing a zero net charge.
It kills microorganisms that lead to spoilage, extending the food's shelf life.
The rearrangement of combinations of atoms.
32 isotopes are radioactive.
An electrical attraction where atoms are held together by their mutual attraction for shared electrons.
A notation that shows the valence electrons surrounding the atomic symbol.
The elements are highly organized.
With a radon detector kit.
H | H—C—H | H (carbon bonded to four hydrogen atoms).
They are synthesized.
Any pure substance that cannot be further decomposed or separated into other stable pure substances.
In terms of its half-life.
It prevents ponds, lakes, and oceans from freezing solid, allowing life to thrive under the icy surface.
Protons and neutrons.
Acetic acid (found in vinegar).
Element symbols, atomic numbers, and atomic masses.
No more solute will dissolve in it.
By increasing atomic number and similar chemical properties.
Alpha (α) rays.
Base (accepts H+).
It increases.
Many polar and ionic substances.
Locations with high levels of natural or man-made radiation.
A hydroxide ion (OH–) is formed.
They release heat as temperature decreases.
The use of X-rays.
A hydrogen ion.
They disperse as a gas.
Mostly water.
It loses or gains electrons.
Any ionic compound formed from the reaction between an acid and a base.
The shorter the half-life, the faster it disintegrates.
Water behaves as a very weak acid and a very weak base.
400 times more radioactive.
The number of electrons is equal to the number of protons in the nucleus.
The food is not transformed into an emitter of radiation; it only receives radiation.
0.05 mol.
35 known isotopes.
Surface tension is the tendency of a liquid’s surface to resist rupture when placed under tension or stress.
Table sugar.
Columns that contain elements with similar properties.
John Dalton in the early 1800s.
A field where doctors use imaging to guide medical procedures, such as inserting catheters and small instruments.
The number of protons in an atom.
The quantity of solute dissolved in a solution.
Ammonium hydroxide.
X-rays, protons, and other types of energy.
Any pure substance that can be further decomposed by a chemical change into two or more other pure substances.
By destroying the genetic material that controls cell growth and division.
One covalent bond.
To measure how much iodine the thyroid gland absorbs.
Molecule B behaves as a base.
Heat is either absorbed or released.
Sodium hydroxide (NaOH).
About 360 mrem.
18 groups.
High-energy electromagnetic radiation with high penetration power.
Intramolecular forces.
A computerized x-ray imaging procedure using a narrow beam of x-rays aimed at the patient and rotated around the body.
HCl + NaOH → NaCl + H2O.
To treat tumors.
About 0.0000001 M.
Protons are about 1800 times as massive as electrons.
1620 years.
Unusually dense materials such as lead.
Hydrochloric acid (HCl).
By a factor of about 1 million.
126 neutrons.
To organize elements based on their properties and atomic structure.
By increasing atomic number and similar chemical properties.
Electrons in the outermost shell of an atom that can participate in chemical bonding.
Only the gold element (Au).
Indivisible (from 'atomos').
A mixture in which the components are so finely mixed that any one region has the same ratio of substances as any other region.
Elements and compounds.
For a period of weeks.
It allows for smaller incisions (cuts) during medical procedures.
Two oppositely charged ions.
Hydrochloric acid (HCl).
To organize and classify elements based on their properties.
A unit of concentration expressed in moles of solute per liter of solution.
H2O is classified as a compound.
They play a role in other biologically important molecules.
Yes, normal cells can often repair much of the damage.
Alpha rays, Beta rays, and Gamma rays.
Solid, liquid, and gas.
C. Both Molecules A and B are behaving as acids.
Na+ ion.
Sodium Chloride.
Valence electrons.
Sodium chloride (NaCl).
12.5% of the original sample.
Tungsten.
Because of its relatively large size and double positive charge (+2).
0.6M.
The inside of your body.
It forms hydronium ions.
Wilhelm Roentgen, the discoverer of X-rays.
Water.
Tiny, indestructible building blocks called atoms.
Pure substances and mixtures.
Matter that has a uniform and definite composition.
26.
The number of atoms or molecules in one mole.
2, 8, 8, 2.
The Latin word 'aurum', meaning glow of sunrise.
1 millirem is 1/1000 of a rem.
As many as 14%.
They are arranged in wave-like entities within regions of space called electron shells.
Hydrogen bonds.
Molecule A behaves as an acid.
Regions of space where electrons vibrate, typically associated with noble gases.
Columns that contain elements with similar properties.
Beta particles can readily pass through paper but cannot penetrate a sheet of aluminum.
Alpha rays.
The name of the element farther to the left is followed by the name of the element farther to the right, with the suffix –ide added to the latter.
Heat is released.
Gamma rays.
Positive charge.
Alpha rays.
Negative charge.
They slow down and move closer together.
To visualize the movement of internal structures, including upper GI and barium enema.
12.
Cross-sectional MRI images or 3D images that can be viewed from different angles.
Protons are much heavier than electrons.
When the X-ray strikes onto the film with a special coating.
By adding the number of protons and neutrons in an atom.
Mass number = Number of protons + Number of neutrons.
To organize and classify chemical elements based on their properties.
By increasing atomic number and similar chemical properties.
A lead apron.
Radium, uranium, and thorium.
Sodium hydrogen carbonate.
3.82 days.
No, the components cannot be seen as identifiable individual substances.
Potassium carbonate.
It becomes a positively charged ion (cation).
2, 8, 8.
They are too small.
H₂O.
4 sets.
To destroy as few normal, healthy cells as possible.
To organize chemical elements based on their properties and atomic structure.
Derived from the Arabic 'al-qali', meaning 'the ashes'.
Approximately 6.9 moles.
The process by which an unstable atomic nucleus loses energy by emitting radiation.
They are used in drain cleaners.
8.
Daughter isotopes, which are the resulting isotopes after decay.
It helps in dating materials and understanding the behavior of radioactive elements.
In the nucleus.
In the electron cloud surrounding the nucleus.
To detect metabolic activity in tissues.
Compounds have physical and chemical properties that are completely different from those of their elemental components.
An electrical attraction where atoms are held together by their mutual attraction for shared electrons.
Acids.
Protons (H+ ions).
Alpha particles, as they can cause more damage to internal tissues.
Whether a solution is acidic, basic, or neutral.
Atom.
The solute must dissolve in the solvent to form a homogeneous mixture.
A compound.
The time taken for half of an original quantity of an element to decay.
No, water is a compound made of more than one type of atom (hydrogen and oxygen).
No, it is constant and independent of any physical or chemical changes.
Covalent bond.
A homogenous mixture consisting of ions or molecules.
The phase change from a liquid to a gas.
Solvent.
Glucose.
The process that happens on the surface of a liquid at any temperature.
Orbiting around the oxygen atom.
A. Molecule B as a base; Molecule A as an acid.
The temperature of water in a pond stays relatively constant from day to night.
A slight negative charge.
44 protons.
Gamma (γ) rays.
Hydrogen Chloride.
Neutrons.
Forming chemical bonds.
Attractive forces between them.
No, it does not become an emitter of radiation.
144g.
Their mutual attraction for shared electrons.
Gray, because they absorb less radiation.
It depends on the context; alpha particles are more harmful internally, while beta particles are more harmful externally.
Pure gold, as it is made of only gold atoms.
Localized doses in excess of 200 rems each day.
90.
They form a crystalline structure that spaces the molecules further apart.
They mix throughout the water to form a homogeneous mixture.
Because ice is less dense than liquid water.
As the amount of solute dissolved per amount of solution.
The interaction between an atom that loses electrons and one that gains them.
Concentration = Amount of solute / Amount of solution.
Water has high heat capacity.
Yes, compounds can be decomposed into two or more other pure substances.
Very small particles that are the building blocks for atoms.
100.
Molecules are no longer attracted to each other and can move freely.
Gamma rays are the most penetrating and can penetrate several centimeters into solid lead.
To remove ambiguity when compounds have different numbers of the same elements.
Protons, neutrons, and electrons.
Alpha, Beta, Gamma.
Computed Tomography or Computerized Axial Tomography.
Anemia.
To screen for breast cancer.
A combination of Positron Emission Tomography and Computed Tomography.
The rem (roentgen equivalent man).
It indicates a stronger acidity.
Their mutual attraction for shared electrons.
Yes, each pure substance retains its own properties.
Only the sodium chloride compound (NaCl).
Because it seeps up through cracks in the floor.
Aluminum sulfate.
The atom.
A molecular unit that acts as a single electrically charged group formed by clumped atoms.
Radon gas.
The maximum number of electrons each shell may contain.
They are unreactive gases.
Hydrogen (H) and Oxygen (O).
The function and structure of the thyroid gland.
Nucleons.
They are more convenient or have been used traditionally.
Molecules absorb heat and their kinetic energy increases.
23.
6.9 M.
Freezing.
High.
Rows that indicate the number of electron shells in the elements.
A medical imaging technique that uses a magnetic field and computer-generated radio waves to create detailed images of organs and tissues.
Tri-.
Atoms of the same element with different numbers of neutrons.
The more basic a solution is, the lower its hydronium ion concentration and the higher its pH.
Radon.
An inert gas.
Negatively charged.
Ammonia behaves as a base by accepting a hydrogen ion from water.
An acid is any chemical that donates a hydrogen ion (H+).
The neutron has no electric charge.
The unequal sharing of electrons between hydrogen and oxygen.
Mixtures that have a uniform composition throughout.
A chemical that accepts H+ ions.
Mixtures that do not have a uniform composition and can be easily separated.
No, elements cannot be further decomposed.
Polar covalent bond.
Alpha particles are the least penetrating and can be stopped by a few sheets of paper.
The ionic bond between Na+ and Cl- dissociates.
A slight positive charge.
Element symbols, atomic numbers, and atomic masses.
The pond water temperature remains stable despite changing atmospheric temperatures.
Electrons.
59.
Ultrasound.
Vessel.
Large, tube-shaped magnets.
They cause aligned atoms to produce faint signals.
The number of protons in the nucleus.
1.0 x 10^-8 M.
To help health care providers see structures inside the body through imaging.
Water is less dense as a solid than as a liquid.
NaCl.
Water behaves as an acid by donating a hydrogen ion.
Noble gases.
They allow atoms to form complex structures that carry a charge.
The positive end of one water molecule is attracted to the negative end of another.
The guidelines for naming compounds are not specified in the provided text.
They have a bitter taste and a slippery feel.
Solute.
44.
Heat provides the energy necessary for substances to change from one phase to another.
Bone.
Mass number = Neutrons + Protons.
It may transition from solid to liquid (melting) or liquid to gas (vaporization).
They significantly influence the atom's chemical properties.
56 neutrons.
Mono-.
Magnesium Oxide.
It temporarily realigns them.
Carbon monoxide.
Carbon dioxide.
Dinitrogen tetroxide.
Thyroid scans and treatment of thyroid cancer.
Methane.
Throughout the liquid at the boiling point.
Because they do not readily form chemical bonds with other atoms.
58 grams.
Higher than 83 (bismuth).
Less than 7.
Molecules slow down and move closer together.
100 degrees Celsius.
Yes, it is electrically neutral overall.
Molecules speed up and expand.
Valence shell.
Neutral (no charge).
Calcium Fluoride.
Sulfur trioxide.
By increasing atomic number and similar chemical properties.
The United States.
Ammonia (NH3).
It takes a lot of energy to raise the temperature of water by a degree.
Electrons, Protons, Neutrons.
From innermost to outermost.
Beta (β) rays.
A few sheets of paper.
Compounds of nonmetals.
Cl- (negative charge).
Heat is absorbed.
Blood.
Regulation or adjustment.
They become weaker.
Examining the brain and spinal cord, cancer screening, and examining heart, vascular, bone, and joint problems.
It targets and destroys cancerous thyroid cells.
Tiny electrons in an electron cloud.
Ionic compound.
They make up the internal structure of atoms.
D. Both Molecules A and B are behaving as bases.
Ultrasound, plain x-rays, CT scans, fluoroscopy, MRI, mammography, nuclear medicine, and PET scans.
Heat.
B. 56 neutrons.
Beta rays.
Strontium Phosphide.
8.
Inform their radiologist in advance.
7 noble gas shells.
Rows that represent elements with increasing atomic numbers.
6.
Beta rays.
It may transition from gas to liquid (condensation) or liquid to solid (freezing).
Heart rate.
Lithium Oxide.
It facilitates the transition between different phases of matter.
Columns that contain elements with similar chemical behaviors.
Na+ (positive charge).
Protons.
Kinetic energy decreases.
Mass number = Number of protons + Number of neutrons.
Di-.
Gamma rays.
0 degrees Celsius.
12.
Bone scan, thyroid scan, and thallium cardiac stress test.
