A) isomers
B) isobars
C) isotones
D) isotopes
Correct Answer: C
Solution :
Isotones have same number of neutrons.\[_{19}^{39}K\] and\[_{20}^{40}Ca\]are isotones. They have 20 neutrons in each. \[_{19}^{39}K:\,\,\,\,\,\,e=p=19,\,\,\,\,\,\,n=39-19=20\] \[_{20}^{40}Ca:\,\,\,\,\,\,e=p=20,\,\,\,\,\,\,n=40-20=20\]You need to login to perform this action.
You will be redirected in
3 sec