Question

A nucleus contains no electrons. Justify this statement

Answer 1

Explanation:

In case of an unstable nucleus like that of radioactive elements, number of neutrons is more than that of number of protons. ... So the electron is created as a part of beta decay and was not there since beginning.

Answer 2

Solution :

A neutron inside a nucleus is unstable. It decays into a proton, an electron and an antineutrino. <br>

to

<br> It is this electron, which is emitted as a

particle form the nucleus.