Question

Compare the characteristics of electrons, protons and neutrons.

Answer 1

Electron

Symbol e

Charge $-1.6\times {10}^{-19}$ C

Mass $9.1\times {10}^{-31}$kg

Electrons are present around the nucleus

Discovered by J. J Thomson

Proton

Symbol $P^{+}$

Charge $+1.6\times {10}^{-19}$

Mass $1.67\times {10}^{-27}kg$

Present inside the nucleus

Discovered by E. Goldstein

Neutron

Symbol $n^o$

No charge

Mass $1.67\times {10}^{-27}kg$

Present inside the nucleus

Discovered by Chadwick