Question

Which period 3 element has successive first through seventh ionization energies (kJ/mol) of
Ei1 = 578; Ei2 = 1,817; Ei3 = 2,745; Ei4 = 11,575; Ei5 = 14,830; Ei6 = 18,376; and Ei7 = 23,293?
A) Mg
B) Al
C) S
D) Cl

Answer

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