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What nuclear process occurs in the sun?
What happens to an isotope when its mass becomes too large and unstable?
A radioactive isotope has a half life of 30 years. At year 0, there are 400 radioactive atoms. How many are left after 120 years of decay?
What are the two main elements (gases) that make up the Sun?
What are two isotopes that are used in a Nuclear Reactor for electricity?
What happens to the nuclei of isotopes during a FUSION reaction?
What was the name of the area in 1986 in which there was a nuclear explosion at a power plant?
This is an example of…
What is an advantage of nuclear energy?
All of the following are problems of nuclear energy except —
What is the difference between a nuclear bomb and a nuclear power plant?
Which type of power plant is this?
The time needed for half of a radioactive sample to decay is called its __________.
What controls the reaction within a nuclear reactor?
The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
The half life of iodine-131 is 8.040 days. What percentage of an iodine-131 sample will remain after 40.20 days?
After the third half-life, how much of the sample is left?
After 22,800 years, approximately what percentage of the original carbon-14 remains?
What is the half-life of iodine-131?
What percent remains in this isotope after 10 days?
How do covalent bonds form?