Question

12. Which pair of atomic mass number (A) and atomic number (Z) is of isotones?
(A) (1) A = 30, Z = 15 (11) A = 31, Z= 14 (B) (1) A = 31, Z= 15 (ii) A = 30, Z = 14
(
C1) A = 32, Z = 15 () A = 30, Z = 14 (D) (i) A= 31. Z = 16 (ii)A = 32. Z = 14​

Answer 1

Explanation:

A(1),D(1)

A(2),C(1)

B(1),B(2),C(2)

find the N this formula

P+N=A