Question

Calculate neutron proton electron (ii) atomic no 92 and Mass number 238

Answer 1

Ans Atomic no. = No. of electron or No. of Proton ( for neutral elements )

Mass no. = No. of Proton + No. of Neutrons

238 = 92 + No. of Neutrons

238 - 92 = No. of Neutrons

No. of Neutrons = 146

Neutron = 146

Electron = 92

Proton = 92