42 The ratio of number of electrons in N shell of A and M shell of B with atomic - Science - Atoms and Molecules

Question

42 The ratio of number of electrons in N shell of A and M shell of
B with
atomic numbers 40 and 32 respectively is
(1) 5 : 3 (2) 9 : 5 (3) 5 : 9 (4) 5 : 4

Geetha · Accepted Answer

Atomic number 40 has electronic configuration, 2,8,18,10,2Atomic number 32 has electronic configuration, 2,8,18,4N shell is the fourth shell which has 10 and 4 as the number of electronsSo the ratio is 10:4 = 5 : 2

42. The ratio of number of electrons in N shell of A and M shell of B with atomic numbers 40 and 32 respectively is (1) 5 : 3 (2) 9 : 5 (3) 5 : 9 (4) 5 : 4

42. The ratio of number of electrons in N shell of A and M shell of B with
atomic numbers 40 and 32 respectively is
(1) 5 : 3 (2) 9 : 5 (3) 5 : 9 (4) 5 : 4