WAEC - Physics (2019 - No. 43)
The nucleon and proton numbers of a neutral atom of an element are 238 and 92 respectively. Determine the number of neutrons in the atom.
119
330
165
146
Giải thích
Neutron No (N) = 238 - 92
= 146
Neutron No (N) = 238 - 92
= 146