Dear student,
Name | symbol |
charge ( in multiple of e) |
approximate mass (amu) |
Location on diagram |
neutron | n | 0 | 1.0 | A |
electron | e | -1 | 1/1837 | B |
proton | p | +1 | 1.0 |
A |
Symbol:-
Protons are represented by small p.
Electrons are represented by small e.
Neutrons are represented by small n.
Charge:-
Protons are positively charged. Charge on is proton +1.
Electrons are negatively charged. Charge on electron is -1.
Neutrons are neutral , there is no charge on neutron.
Mass:-
Mass of proton is 1837 times the mass of electron.
Therefore comparative mass of electron is 1/ 1837 amu with respect to mass of proton i.e. 1 amu.
Mass of neutron is approximately equal to the mass of proton i.e.
1 amu.
Location:-
Protons and neutrons present in nucleus i.e at A on diagram.
While electrons revolve around the nucleus i.e. at B on diagram.
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