Q20: Which are isoelectronic? A)Na, Mg2+, F- BLi. Na, K C)s. s-2. Ar Do-2, N-3, F....

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Q20: Which are isoelectronic? A)Na, Mg2+, F- BLi. Na, K C)s. s-2. Ar Do-2, N-3, F. E) K+. Ar. C

Answer 1

Answer #1

A) Na, Mg²⁺, F^-

Beacuse Each of the given species (ions) has the same number of electrons (10 electrons). Hence, the given species are isoelectronic, i.e

Na (sodium ) has 10 electrons

Mg²⁺ has 12 -2= 10 electrons

F^- has 9+1 = 10 electrons

Answer 2

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