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Which Ion Is NOT Isoelectronic (I

Question 64

Multiple Choice

Which ion is NOT isoelectronic (i.e.has the same electron configuration) with Ar? The electron configuration of Ar is shown. Which ion is NOT isoelectronic (i.e.has the same electron configuration) with Ar? The electron configuration of Ar is shown. A) Cl<sup>−</sup> B) K<sup>+</sup> C) Br<sup>−</sup> D) Ca<sup>2+</sup> E) S<sup>2−</sup>


A) Cl−
B) K+
C) Br−
D) Ca2+
E) S2−

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