Question

The electronic configuration of the atom
of an element X' is
(n − 2) s(n 1) s2 (n − 1) pøns-n
Ifn = 3, the element 'X' is placed in
modern periodic table​

Answer 1

Explanation:

The electronic configuration of an element x is : K L M2 8 6a) What is the group no. element x in the periodic table?b) What is the period no. of element