Question

The atomic number of elements a and b are 12 and 8 respectively.they combine together write down the formula and nature of bonding in the compound.

Answer 1

Element A is Magnesium and Element B is Oxygen.

when they combine they form magnesium oxides  

mg + 02- mgo2.

compound is ionic because valency of electron is 2 .

I hope the answer is helpful.

Answer 2

▄▀▄ █▄─█ ▄▀▀ █───█ █▀▀ █▀▀▄
█▀█ █─▀█ ─▀▄ █─█─█ █▀▀ █▐█▀
▀─▀ ▀──▀ ▀▀─ ─▀─▀─ ▀▀▀ ▀─▀▀
♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣

FOR a.....

Atomic number --->12..

ELECTRONIC CONFIGURATION --->2,8,2.
♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣
For b....

Atomic number --8

ELECTRONIC CONFIGURATION --->2,6
♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣

✔TYPE OF BOND--->Electrovalent bond

✔FORMULA --->ab2*

♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣♣


✨✨HOPE IT HELPS ✨✨