Question

An ion in M2+ state has configuration 2,8,1. To which group and period does it belongs to?
(a) 3,3 (b) 3,13 (c) 13,3 (d) 2,13

Answer 1

Answer:

Ans. (b) 3,13

Explanation:

Number of electrons in M2+ state = 2+8+1= 11

Number of electrons in M state = 2+8+1+2= 13

Thus , the element belong to group 3 and period 13