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1. If a nucleus is said to have a low probability of undergoing decomposition, it said to have:
high kinetic stability low beta emission rate low gamma ray emission rate high thermodynamic stability high gamma ray emission rate

2. If nuclide X has a change in its mass number, then it must have undergone:
Alpha particle emission Beta particle emission electron capture positron emission None of these

3. Fill in the blank: 22/11 Na--> (blank) +22/10 Ne
4/2 He 1/0 n 0/-1 e 0/1 e None of these

4. The reaction: 14/7 C --> 0/-1 e + 14/7 N is an example of a (blank) emission.
Alpha particle emission Beta particle emission electron capture positron emission None of these

5. What fraction of C-14 is left in a piece of wood cut from a tree 2000 years ago? (Note: the half-life of Carbon-14 is approximately 5730 years)
14% 28% 67% 76% None of these

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