Inloggen
WAEC - Physics (1990 - No. 54)
The nucleon number and the proton number of a neutral atom of an element are 238 and 92 respectively. What is the number of neutrons in the atom?
330
165
146
119
73
Opmerkingen (0)
Log in om te reageren
Advertentie
Sta JavaScript toe om deze pagina correct te laden
