Answer to Question #98551 in General Chemistry for Brittany Wallace

Question #98551
1. Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with the sulfide ion, S2-.

2. Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with Ar.
1
Expert's answer
2019-11-13T01:08:57-0500
  1. "S^{2-}=1s^22s^22p^63s^23p^6" Sulphide ion has 18 electrons. Thus, it's isoelectronic species are : "Cl^-" (chloride ion), "Ar" (neutral Argon atom), "K^+" (Potassium ion) and "Ca^{2+}" (Calcium ion).
  2. "Ar=1s^22s^22p^63s^23p^6" Argon has 18 electrons. Thus it's isoelectronic species are : "Cl^-" (Chloride ion), "S^{2-}" (Sulpide ion), "K^+" (Potassium ion) and "Ca^{2+}" (Calcium ion).

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