The hydrogen chloride molecule contains a

When two atoms with electrons having the same spin approach each other for bonding,which of the following will occur?

The electronic configuration of three elements $A$,$B$ and $C$ are given below. Stable form of $C$ may be represented by the formula
$A : 1s^2, 2s^2, 2p^6$
$B : 1s^2, 2s^2, 2p^6, 3s^2, 3p^3$
$C : 1s^2, 2s^2, 2p^6, 3s^2, 3p^5$

The structure of aluminium bromide is best represented as :

Which of the following has $p\pi-d\pi$ bonding?

Explain: Lewis dot representation.