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Questions and Answers
What happens to the mass number and atomic number in alpha decay?
What happens to the mass number and atomic number in alpha decay?
- Mass number reduces by two and atomic number remains unchanged
- Mass number reduces by four and atomic number reduces by two (correct)
- Mass number reduces by two and atomic number reduces by four
- Mass number remains unchanged and atomic number reduces by four
What decay process occurs in a nucleus with excess neutrons?
What decay process occurs in a nucleus with excess neutrons?
- Gamma decay
- Alpha decay
- Beta-plus decay
- Beta-minus decay (correct)
What happens to the atomic number and mass number in gamma decay?
What happens to the atomic number and mass number in gamma decay?
- Remain unchanged (correct)
- Atomic number increases and mass number decreases
- Both increase
- Both decrease
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