Ionization enthalpy \( \left(\Delta_{\mathrm{i}} \mathrm{H}_{1} \mathrm{~kJ} \mathrm{~mol}^{-1}\...
Ionization enthalpy \( \left(\Delta_{\mathrm{i}} \mathrm{H}_{1} \mathrm{~kJ} \mathrm{~mol}^{-1}\right) \) for the elements of Group 13 follows the order.
(a) \( \mathrm{B}\mathrm{Al}\mathrm{Ga}\mathrm{In}\mathrm{Tl} \)
(b) \( \mathrm{B}\mathrm{Al}\mathrm{Ga}\mathrm{In}\mathrm{Tl} \)
(c) \( \mathrm{B}\mathrm{Al}\mathrm{Ga}\mathrm{In}\mathrm{Tl} \)
(d) \( \mathrm{B}\mathrm{Al}\mathrm{Ga}\mathrm{In}\mathrm{Tl} \)
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