Chemistry - PERIODIC TABLE Question with Solution | TestHub

Choose the number of correct statements from the following.

(a) ${\mathrm{I}}^{\text{st }}$ ionisation potential of B is higher than that of 'Be'.

(b) Electron affinity of ' O ' is higher than that of ' S '.

(c) $[\mathrm{Ar}]4{\mathrm{s}}^{2}3{\mathrm{d}}^3$ is the electronic configuration of ${\mathrm{Mn}}^{2+}$.

(d) ${\mathrm{II}}^{\mathrm{nd}}$ ionisation potential of sodium is greater than that of magnesium.

(e) Electronegativity of $\mathrm{P}>$ Electronegativity of carbon.

(f) $\mathrm{Al}(\mathrm{g})\to {\mathrm{Al}}^{2+}(\mathrm{g})$ is $2^{\mathrm{nd}}$ ionisation potential of aluminium.

(g) Conversion of $\mathrm{O}(\mathrm{g})\to {\mathrm{O}}^{-2}(\mathrm{g})$ is exothermic