Illustrate about nuclear particle, Chemistry

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Q. Illustrate about nuclear particle?

In 1932 Rutherford with Chadwick demonstrated the existence of the neutron a nuclear particle having no charge but with nearly the same mass as a proton. The following table recapitulate the sub- atomic particles that comprise the atom.

 

Particle

 

Symbol

Electrical charge

Relative mass

Actual mass  (g)

Electron

e-

1-

1/1840

9.11 * 10- 28

Proton

P+

1+

1

1.673 *10  -24

Neutron

n0

0

1

1.675*10 -24


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