The first four successive ionization energies of an unknown element are listed…

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

Problem

The first four successive ionization energies of an unknown element are listed (values in kJ mol−1\text{kJ}\,\text{mol}^{-1}). IE1\text{IE}_1 900 IE2\text{IE}_2 1757 IE3\text{IE}_3 14\,800 IE4\text{IE}_4 19\,900 Based on these data, which element is most likely the unknown? (a) Na (b) Ca (c) Mg (d) Al

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