Question

By emission of positron the nucleus of element is changed in to other element having

A) One Atomic no less than parent atom
B) one Atomic no more than parent atom
C) two mass no less
D) remains same
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Answer 1

Answer:

The positron is a type of beta particle (β+), the other beta particle being the electron (β−) emitted from the β− decay of a nucleus. ... Positron decay results in nuclear transmutation, changing an atom of one chemical element into an atom of an element with an atomic number that is less by one unit.