Question

An element E has following electronic configuration:

K	L	M
2	8	6

(a) To which group of the periodic table does element E belong?

(b) To which period of the periodic table does element E belong?

(c) State the number of valence electrons present in element E.

(d) State the valency of the element E.

Answer 1

(a) The element E belongs to group 16.

(b) The element E belongs to the 3rd period.

(c) The element E has 6 valence electrons.

(d) The element E has a valence of +6 or −2.