Edit Game
Nuclear Chemistry
 Delete

Use commas to add multiple tags

 Private  Unlisted  Public



 Save

Delimiter between question and answer:

Tips:

  • No column headers.
  • Each line maps to a question.
  • If the delimiter is used in a question, the question should be surrounded by double quotes: "My, question","My, answer"
  • The first answer in the multiple choice question must be the correct answer.

 Import questions





 Save   26  Close
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
 
3.48 grams
 
0.434 grams
 
10.43 grams
Which of the following has no mass and does not change the composition of the nucleus?
 
Gamma ray
 
Alpha particle
 
Beta particle
 
Neutron
Which of the following has a mass of 1 and an atomic number of 1?
 
Proton
 
Neutron
 
Beta particle
 
Alpha particle
What is the product of a cobalt-60 atom that undergoes two beta decays?
 
Copper-60
 
Iron-60
 
Manganese-60
 
Copper-62
When neptunium-238 decays, it emits two alpha particles, a beta particle, and a gamma particle. The resulting isotope is:
 
Thorium-230
 
Protactinium-234
 
Actinium-234
 
Thorium-232
The formation of uranium-236 from plutonium-240 occurs by:
 
alpha decay
 
proton decay
 
neutron decay
 
gamma decay
An element undergoes gamma decay to form lead-206. What was the identity of that initial element?
 
Lead-206
 
Thallium-210
 
Bismuth-210
 
Lead-210
What is the energy required to break a nucleus into its individual nucleons called?
 
Nuclear binding energy
 
Activation energy
 
Ionization energy
 
Free energy
During a nuclear reaction, mass is lost. Which of the following does this result in?
 
A release of energy
 
An increase in the speed of light
 
No change in energy
 
A gain of energy
The difference between the mass of the nucleus and the sum of each individual nucleon is:
 
Mass defect
 
Nucleon defect
 
Nucleon difference
 
Mass difference
The type of nuclear power that occurs when a heavier atom splits into smaller pieces, which is the most common on Earth is known as _____.
 
nuclear fission
 
nuclear fusion
 
radioactive carbon dating
 
radioactive tracer
Which of the following statements is NOT true regarding the process of nuclear fusion?
 
Mass is gained during the process
 
Two or more atoms combine to form one heavier atom
 
There is currently no feasible way to harness energy
 
Massive amounts of energy are emitted
Becky was recently diagnosed with an aggressive brain tumor. Her oncologist recommended treating the tumor with cobalt-60 due to its precision with treating this type of cancer. This substance is being used for _____.
 
radiation therapy
 
to cause a chain reaction
 
as a radioactive tracer
 
nuclear fusion
Cobalt-57 has a half-life of about 272 days. If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, then how many half-lives passed?
 
4
 
3
 
1
 
2
If a substance has a half-life of 5 years, then how much of the initial sample remains after 15 years?
 
One-eighth (1/8)
 
One-sixteenth (1/16)
 
One-fourth (1/4)
 
One-fifth (1/5)
A sample of thulium-171 has a mass of 0.4055 grams. How much is left after 6 half-lives?
 
0.006336 grams
 
0.02534 grams
 
0.05069 grams
 
0.01267 grams
Carbon-10 has a half-life of about 19 seconds. How many half-lives does it undergo in 2 minutes and 32 seconds?
 
8 half-lives
 
4 half-lives
 
6 half-lives
 
7 half-lives
Uranium-238 decays to form thorium-234. Which of the following is this an example of?
 
Alpha decay
 
Beta decay
 
Gamma decay
 
Positron emission
Carbon-14 emits an electron and it becomes Nitrogen-14. Which of the following is this an example of?
 
Beta decay
 
Positron emission
 
Alpha decay
 
Gamma decay
When does the atomic number always change?
 
After beta decay and alpha decay
 
After beta decay and gamma decay
 
After alpha decay and gamma decay
 
After positron emission and gamma decay
Which of the following types of radioactive decay involves the emission of high-energy electromagnetic radiation?
 
Gamma decay
 
Positron emission
 
Alpha decay
 
Beta decay
When the sum of the masses of all the nucleons within the nucleus is less than the mass of the nucleus, what is the reaction deemed?
 
Favorable
 
Nuclear
 
Unfavorable
 
Ionic
Which process would turn Rn-218 into Po-214?
 
Alpha decay
 
Positron emission
 
Gamma decay
 
Beta decay
During _____ only energy is released.
 
Gamma decay
 
Alpha decay
 
Positron emission
 
Beta decay
An isotope has a half-life of 30 minutes. Given an original sample of 100 g of the isotope, how much will be left after an hour?
 
25 grams
 
50 grams
 
0 grams
 
100 grams
If the amount of Zn-71 was reduced from 50 grams to 12.5 grams in 4 minutes, what is the half-life of Zn-71?
 
2 minutes
 
4 minutes
 
1 minutes
 
30 seconds
Your experience on this site will be improved by allowing cookies.