Two elements have electronegativities of $1.2$ and $3.0$. The bond formed between them would be:

$AB$ is an ionic solid. The ionic radii of $A^{+}$ and $B^{-}$ are respectively $r_c$ and $r_a$. Lattice energy of $AB$ is proportional to:

What is the effect of a more electronegative atom on the strength of an ionic bond?

Which of the following compounds has the lowest melting point?

The correct statement for the molecule,$CsI_3$ is:

Elements $X$ and $Y$ have $2$ and $6$ electrons in their valence shells,respectively. If they combine,what will be the possible formula of the compound formed?