What does the following textbook definition describe? "a self-sustaining nuclear fission process in which neutrons produced in one fission reaction trigger more fission events"
Chain Reaction
What was the name of the bomb dropped on Nagasaki?
Fat Man
Plutonium-239 (Pu-239) decays, releasing an alpha particle. Write the nuclear equation, and identify what isotope is formed.
Should form Uranium-235 (U-235)
What was the name of the Canadian city in WW1 that was destroyed by the largest non-nuclear explosion?
Halifax
Write the alpha decay of Protactinium-231 (Pa-231)
Should form Actinium-227 (Ac-227)
What is the strong force?
The force that holds protons and neutrons together in the nucleus.
Strontium-90 has a half-life of 28.8 years. How much of a 64 g sample remains after 57.6 years?
16 g
A 1000 g sample of Barium-140 decays to 125 g in 3 days. What is the half-life?
1 day
What was the name of the man who discovered X-Ray technology?
Wilhelm Rontgen
What was the name of the bomb dropped on Hiroshima?
Little Boy
Draw the nuclear symbol for an alpha particle.
He (mass number 4, atomic number 2)
Draw the nuclear symbol for a beta particle.
e (mass number 0, atomic number -1) (SAME AS AN ELECTRON)
Iodine-131 decays from 200 g to 25 g. How many half-lives is this?
4
Draw the nuclear symbol for an electron.
e (mass number 0, atomic number -1)
A 64 g sample of Isotope X decays to 16 g in 10 days. What is the half-life?
5 days
What was the name of the man who discovered radioactivity?
Henri Becquerel
What initiates the fission of a uranium-235 nucleus? (Hint: What bombards it?)
A neutron is sent into the nucleus, thus making it an unstable and rapidly undergo nuclear fission.
The sun is powered by what type of nuclear energy?
Fusion
0.625 g of Uranium-235 remains after 4 half-lives. What was the original amount?
10g
What is the MOST penetrating form of radiation?
Gamma radiation
If 12.5 g of Iodine-131 remains after 3 half-lives, what was the original amount?
100g
All elements past which element are radioactive?
Bismuth, 83
A 20 g sample of Iodine-131 (half-life: 8 days) is left alone. How much remains after 24 days?
2.5 g
Draw the nuclear symbol for a gamma ray
Greek gamma symbol (mass number and atomic number of 0)
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