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Physics
When an atom undergoes β - decay, its atomic number:
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Q. When an atom undergoes $ \beta - $ decay, its atomic number:
KEAM
KEAM 2000
A
does not change
B
increases by 1
C
decreases by 1
D
increases by 2
E
decreases by 2
Solution:
$ \beta - $ particles are fast moving electrons, hence when an atom undergoes $ \beta - $ decay its atomic number increases by one and mass number remains unchanged.