Question

An element 'X' belongs to the 3rd period and 16th group of periodic table .a) Determine the number of valence elctrons and the valency of 'X'. B)Molecular formula of the compound when 'X' reacys with hydrogen and write its electron dot structure. C) Name the element 'X' abd state weather it is metallic or non-metallic?

Plz help ..

Answer 1

Answer:

X is Sulphur

a)As it contains 16 electrons let us distribute it into shells = (2,8,6)

Therefore it has 6 valence electrons.

b)Molecular formula is XH2

Electron dot structure. ..X..

c) Sulphur and is non-metallic

Hope it helps!