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Which of the following are iso-electronic species? Na^+, K^+, Mg^2+, Ca^2+, S^2-, Ar.

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asked Aug 7, 2017 in Chemistry by sforrest072 (157,439 points) ● 63 ● 450 ● 1292

Which of the following are iso-electronic species?
Na+, K+, Mg2+, Ca2+, S2-, Ar.

1 Answer

+1 vote
answered Aug 7, 2017 by faiz (82,347 points) ● 6 ● 6 ● 12
selected Aug 7, 2017 by sforrest072
 
Best answer

Na+ and Mg2+ are iso-electrons species (have 10 electrons)
K+, Ca2+, S2- are iso-electronic species (have 18 electrons).

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