Classification ...

For AX ionic crystal to exist in bcc structure, the ratio of $$\left( \dfrac{r_{cation}}{r_{anion}} \right)$$ should be:

Ionisation energy of $$F^{-}$$ is $$320\ kJ\ mol^{-1}$$. The electron gain enthalpy of fluorine would be:

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species.

Flourine is the best oxidising agent because it has:

Select the group where $$EN$$ increases down the group.

Which of the following electronic configurations corresponds to elements with largest negative electron gain enthalpy?

Which of the following species has the highest electron affinity?

If periodic table would have contained 10 period, maximum elements in that periodic table would be:

The chemical activity of an atom is dependent on the number of __________.

Few general names are given along with their valence shell configurations. Mark the incorrect name.