Question

Two nuclei A and B are isotonic with mass numbers 15 and 16 respectively. If A contains 7 protons,
then the number of protons in B would be
(1) 7
(3) 9
(4) 10
(2) 8​

Answer 1

Answer:

7

Explanation:

Ans would be 7 as isotopes differ only in no of neutrons and total atomic mass number.