The difference between the mass of the nucleus and the sum of each individual nucleon is:
Nucleon defect
Nucleon difference
Mass defect
Mass difference
During a nuclear reaction, mass is lost. Which of the following does this result in?
An increase in the speed of light
A gain of energy
A release of energy
No change in energy
What is the energy required to break a nucleus into its individual nucleons called?
Free energy
Activation energy
Nuclear binding energy
Ionization energy
An element undergoes gamma decay to form lead-206. What was the identity of that initial element?
Bismuth-210
Lead-210
Thallium-210
Lead-206
The formation of uranium-236 from plutonium-240 occurs by:
gamma decay
alpha decay
neutron decay
proton decay
When neptunium-238 decays, it emits two alpha particles, a beta particle, and a gamma particle. The resulting isotope is:
Actinium-234
Protactinium-234
Thorium-232
Thorium-230
What is the product of a cobalt-60 atom that undergoes two beta decays?
Copper-62
Manganese-60
Iron-60
Copper-60
Which of the following has a mass of 1 and an atomic number of 1?
Alpha particle
Beta particle
Proton
Neutron
Which of the following has no mass and does not change the composition of the nucleus?
Beta particle
Neutron
Alpha particle
Gamma ray
A 6.95 gram sample of radioactive nobelium-259 has a half-life of 58 min. How much is left after 2 hours and 54 minutes?
0.869 grams
0.434 grams
3.48 grams
10.43 grams
