Question

Calculate the charge on26F56 nucleus. Given charge on proton = 1.6 x 10-19 C.

Answer 1

The nucleus of atom consists of neutron and proton. Neutons are neutral(have no charge). But, protons are carrying positive charge. Thus, the charge of nucleus is due to the protons only. Now

For 26F56
Atomic mass = 56

Atomic number = 26

No. of protons = Atomic number = 26

Charge on nucleus (q) is given by
 q = Ze
= 26 x 1.6 x 10-19 
= 4.16 x 10-18 C