Question

The triad of nuclei that is isotonic is
(a) $^{14}_6C,^{15}_7N,^{17}_9F$
(b) $^{12}_6C, ^{14}_7N, ^{19}_9F$
(c) $^{14}_6C, ^{14}_7N, ^{17}_9F$
(d) $^{14}_6C, ^{14}_7N, ^{19}_9F$

Answer 1

answer is that the text is the part of energy