Question

20. The formula of the binary compound formed by the
element X with atomic number 120 and sulphur is:
(a) X2S
(b) XS2
(c) X 3S
(d) XS​

Answer 1

Explanation:

Explanation:The electronic configuration of the element X with atomic number 120 is[Uuo]8s

Explanation:The electronic configuration of the element X with atomic number 120 is[Uuo]8s 2

Explanation:The electronic configuration of the element X with atomic number 120 is[Uuo]8s 2 . Thus, it belongs to second group and its valency is 2. Since the valence of S is 2 so formula of the compound will be XS.