Question

Two elements X and Y have atomic number 12 and 16 respetively . Write the electronic configuration for both . To which period of modern periodic able do these belong ? What type of bond will be formed between them and why ?

Answer 1

X=MAGNESIUM (MG)atomic no;12
Y=SULPHUR(S)atomic no;16

electronic configuration of magnesium=2,8,2
electronic configuration of sulphur=2,8,6
magnesium belongs to period 3 group 2
and sulphur belongs to period 3 group 16
i think they form a ionic bond.

Answer 2

Magnesium-12-1s^2 2s^2 2p^6 3s^2
Sulphur-16-1s^2 2s^2 2p^6 3s^2 3p^4
Magnesium and Sulphur both belong to 3rd period of modern periodic table.
Covalent bond will be formed between them as they are non-metals