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  4. When a β - -particle is emitted from a nucleus. the neutron-proton ratio:

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Q. When a $\beta ^{-}$ -particle is emitted from a nucleus. the neutron-proton ratio:

NTA AbhyasNTA Abhyas 2020

Solution:

When a $\beta $ -particle is emitted from a nucleus, no. of proton increases and number of neutron decreases. Hence the neutron-proton ratio is decreased.