The correct values of ionization enthalpies

CHEMISTRY · Single correct · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

The correct values of ionization enthalpies, in kJ mol−1\text{kJ mol}^{-1}, of Si, P, Cl, and S respectively are: (1) 786, 1012, 999, 1256786,\ 1012,\ 999,\ 1256 (2) 1012, 786, 999, 12561012,\ 786,\ 999,\ 1256 (3) 786, 1012, 1256, 999786,\ 1012,\ 1256,\ 999 (4) 786, 999, 1012, 1256786,\ 999,\ 1012,\ 1256

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