Among Na and Mg, which will have higher second ionisation enthalpy? Given that the atomic number of sodium (Na = 11) and magnesium (Mg = 12)

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Among sodium and magnesium, sodium will have higher second ionisation enthalpy because in sodium the second electron has to be removed from second shell where as in the case of magnesium the second electron is removed from third shell.

Answered by  | 4th Jun, 2014, 03:23: PM