During a radioactive decay, which of the following statements is false
atomic mass number cannot increase
atomic number may increase
atomic number may decrease
atomic number will remain unchanged
A
atomic mass number cannot increase
B
atomic number will remain unchanged
C
atomic number may increase
D
atomic number may decrease
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Solution
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D
In alpha decay the atomic number is decreased by 2. In beta decay atomic number is increased by 1 and in gamma decay atomic number remains unchanged. So in alpha and beta decay atomic number varies.
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