Posted by Amy on Monday, November 29, 2010 at 10:50am.
Which of the following species are isoelectronic? Select all that apply.
Chemistry Help - DrBob222, Monday, November 29, 2010 at 2:32pm
Isoelectronic means the same number of electrons.
I would suggest you write out the electron configuration of each, then compare. For example, #1 is
16S = 1s2 2s2 2p6 3s2 3p4; therefore,
take away two outside electrons and
16S^-2 becomes 1s2 2s2 2p6 3s2 3p2
Chemistry Help - Amy, Monday, November 29, 2010 at 2:50pm
For S^2- why are taking away electrons? Are suppose to add electrons?
Chemistry Help - Amy, Monday, November 29, 2010 at 2:59pm
So far I have S^2-, Cl^-, K^+, and Ca^2+ instead the other two as the answer. Please tell me if I have these answers correct.
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