A) \[_{19}^{40}K,\,_{20}^{40}Ca\]
B) \[_{19}^{39}K,\,_{20}^{40}Ca\]
C) \[_{18}^{33}Ar,\,_{\,18}^{40}Ar\]
D) \[_{18}^{40}Ar,\,_{\,20}^{40}Ca\]
Correct Answer: B
Solution :
In isotones have same number of neutrons.
You need to login to perform this action.
You will be redirected in
3 sec
