1.

Pickout the correct statements:

Answer»

Negative `BETA`-decay decreases the proportion of neutrons and INCREASES the proportion of proton
Positive `beta`-decay increases the proportion of neutrons and decreases the proportion of proton
`K`-electron capture increases the proportion of neutrons and increases the proportion of proton.
Positrons and ELECTRONS quickly unite to produce photons.

Answer :A, B, D


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