NUCLEAR CHEMISTRY STUDY SET EXAM WITH ALL
QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED 2025-2026!!
EVERYTHING YOU NEED IS HERE 100% PASS GUARANTEED
alpha particle - ANSWER>>a helium nucleus that is emitted from a radioactive atom.
beta particle - ANSWER>>a high speed electron that is emitted from a radioactive atom.
Neutron is transformed into a proton
gamma particle - ANSWER>>a high-energy photon (particle of light) that is emitted from
a radioactive nucleus. They have zero mass
What stops alpha? - ANSWER>>paper
atomic number - ANSWER>>the number of protons in the nucleus of an atom. The
number of protons is unique to each element and defines that element.
isotope - ANSWER>>atoms that have the same number of protons and are therefore the
same element but different numbers of neutrons.
Isotopes are chemically identical, but some may be radioactive while others are not.
8 - ANSWER>>How many neutrons are in the isotope Carbon-14?
,212(top) 82(bottom) Pb - ANSWER>>What is the symbol for lead212
in the bottom left-hand corner - ANSWER>>Where is the atomic number in the isotope
symbol for U?
fission - ANSWER>>breaking a large nucleus into smaller nuclei.
This is what releases the energy in nuclear reactors and atomic bombs.
fusion - ANSWER>>squashing smaller nuclei together to form larger nuclei. This
releases even more energy than nuclear fission.
does not change - ANSWER>>What happens to the mass number of an element when it
undergoes beta decay?
Radioactive half-life - ANSWER>>The radioactive half-life for a given isotope is the time
for half the radioactive nuclei in any sample to undergo radioactive decay.
E=mc^2 - ANSWER>>Einsteins equation proposing that energy has mass; E is energy,
m is mass, and c is the speed of light
Positron - ANSWER>>a particle with the mass of an electron but a positive charge
Band of stability graph - ANSWER>>Graph of proton and neutron ratio to determine
stability of an isotope.
Positron - ANSWER>>a particle with the mass of an electron but a positive charge
electron capture - ANSWER>>an inner orbital electron is captured by the nucleus of its
own atom
,nuclear radiation the emission of alpha particles, beta particles, or gamma rays from the
nucleus of an atom
mass number the number of protons and neutrons in the nucleus of an atom
atomic number the number of protons in the nucleus of an atom.
isotope Atoms that have the same number of protons (and are therefore the same
element) but different numbers of neutrons.
radioisotope - ANSWER>>an atom that emits alpha particles, beta particles, and/or
gamma rays.
stable isotope - ANSWER>>an "ordinary" element: does not break down and does not
emit particles or rays.
Using the periodic table and your knowledge of nuclear chemistry terminology, give the
symbol for lead-212 - ANSWER>>
fission - ANSWER>>breaking a large nucleus into smaller nuclei.
This is what creates the energy in nuclear reactors and atomic bombs.
Which subatomic particle causes the nuclear chain reaction inside nuclear reactors and
atomic bombs? - ANSWER>>The neutron
fusion - ANSWER>>T he process by which smaller nuclei combine to form bigger
nuclei. This tends to release even more energy than does nuclear fission.
Name one thing you can do to alter the rate of nuclear decay in a radioactive isotope.
, ANSWER You can't. Radioactive decay isn't influenced by any of those factors that
influence chemical reaction rates, like the addition or removal of heat or
raising/lowering pressure.
How do nuclear chain reaction rates in a nuclear reactor? - ANSWER>>Neutrons are
absorbed or slowed down by graphite control rods and water surrounding the uranium
in the reactor.
Write the equation that represents carbon-14 undergoing beta decay. - ANSWER>>
Write the equation that represents radium-222 undergoing alpha decay. - ANSWER>>
Radioactive half-life - ANSWER>>is the time for half the radioactive nuclei in any sample
to undergo radioactive decay.
Every living organism on Earth contains a small, constant, measurable fraction of what
radioactive isotope? - ANSWER>>Carbon-14, which has a half-life of 5730 years.
This isotope is used to estimate how many years have passed since the death of living
things. What is this method of dating called? - ANSWER>>carbon dating.
What stops beta radiation? - ANSWER>>metal
What stops gamma radiation? - ANSWER>>lead or concrete
What element is formed when the radioisotope Hydrogen-3 undergoes beta decay? Give
atomic number and mass - ANSWER>>Helium-3
What element is formed when the radioisotope Uranium-235 undergoes beta decay?
Give atomic number and mass - ANSWER>>Neptunium-235
QUESTIONS AND CORRECT ANSWERS 100%
VERIFIED 2025-2026!!
EVERYTHING YOU NEED IS HERE 100% PASS GUARANTEED
alpha particle - ANSWER>>a helium nucleus that is emitted from a radioactive atom.
beta particle - ANSWER>>a high speed electron that is emitted from a radioactive atom.
Neutron is transformed into a proton
gamma particle - ANSWER>>a high-energy photon (particle of light) that is emitted from
a radioactive nucleus. They have zero mass
What stops alpha? - ANSWER>>paper
atomic number - ANSWER>>the number of protons in the nucleus of an atom. The
number of protons is unique to each element and defines that element.
isotope - ANSWER>>atoms that have the same number of protons and are therefore the
same element but different numbers of neutrons.
Isotopes are chemically identical, but some may be radioactive while others are not.
8 - ANSWER>>How many neutrons are in the isotope Carbon-14?
,212(top) 82(bottom) Pb - ANSWER>>What is the symbol for lead212
in the bottom left-hand corner - ANSWER>>Where is the atomic number in the isotope
symbol for U?
fission - ANSWER>>breaking a large nucleus into smaller nuclei.
This is what releases the energy in nuclear reactors and atomic bombs.
fusion - ANSWER>>squashing smaller nuclei together to form larger nuclei. This
releases even more energy than nuclear fission.
does not change - ANSWER>>What happens to the mass number of an element when it
undergoes beta decay?
Radioactive half-life - ANSWER>>The radioactive half-life for a given isotope is the time
for half the radioactive nuclei in any sample to undergo radioactive decay.
E=mc^2 - ANSWER>>Einsteins equation proposing that energy has mass; E is energy,
m is mass, and c is the speed of light
Positron - ANSWER>>a particle with the mass of an electron but a positive charge
Band of stability graph - ANSWER>>Graph of proton and neutron ratio to determine
stability of an isotope.
Positron - ANSWER>>a particle with the mass of an electron but a positive charge
electron capture - ANSWER>>an inner orbital electron is captured by the nucleus of its
own atom
,nuclear radiation the emission of alpha particles, beta particles, or gamma rays from the
nucleus of an atom
mass number the number of protons and neutrons in the nucleus of an atom
atomic number the number of protons in the nucleus of an atom.
isotope Atoms that have the same number of protons (and are therefore the same
element) but different numbers of neutrons.
radioisotope - ANSWER>>an atom that emits alpha particles, beta particles, and/or
gamma rays.
stable isotope - ANSWER>>an "ordinary" element: does not break down and does not
emit particles or rays.
Using the periodic table and your knowledge of nuclear chemistry terminology, give the
symbol for lead-212 - ANSWER>>
fission - ANSWER>>breaking a large nucleus into smaller nuclei.
This is what creates the energy in nuclear reactors and atomic bombs.
Which subatomic particle causes the nuclear chain reaction inside nuclear reactors and
atomic bombs? - ANSWER>>The neutron
fusion - ANSWER>>T he process by which smaller nuclei combine to form bigger
nuclei. This tends to release even more energy than does nuclear fission.
Name one thing you can do to alter the rate of nuclear decay in a radioactive isotope.
, ANSWER You can't. Radioactive decay isn't influenced by any of those factors that
influence chemical reaction rates, like the addition or removal of heat or
raising/lowering pressure.
How do nuclear chain reaction rates in a nuclear reactor? - ANSWER>>Neutrons are
absorbed or slowed down by graphite control rods and water surrounding the uranium
in the reactor.
Write the equation that represents carbon-14 undergoing beta decay. - ANSWER>>
Write the equation that represents radium-222 undergoing alpha decay. - ANSWER>>
Radioactive half-life - ANSWER>>is the time for half the radioactive nuclei in any sample
to undergo radioactive decay.
Every living organism on Earth contains a small, constant, measurable fraction of what
radioactive isotope? - ANSWER>>Carbon-14, which has a half-life of 5730 years.
This isotope is used to estimate how many years have passed since the death of living
things. What is this method of dating called? - ANSWER>>carbon dating.
What stops beta radiation? - ANSWER>>metal
What stops gamma radiation? - ANSWER>>lead or concrete
What element is formed when the radioisotope Hydrogen-3 undergoes beta decay? Give
atomic number and mass - ANSWER>>Helium-3
What element is formed when the radioisotope Uranium-235 undergoes beta decay?
Give atomic number and mass - ANSWER>>Neptunium-235
