1.

An atom having atom ic m ass num ber 13 has 7 neutrons. W hat is the atom ic n u m b er of the atom ?

Answer»

Solution :N EUTRON is neutral so, no deflection from the p ath on passing through an electric field. Proton, cathode RAYS an d ELECTRON being the charged particle will show deflection from the p ath on passing through an electric field.


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