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Anonymous asked in Science & MathematicsChemistry · 11 hours ago

chem hw help!?

6. Which of the following is NOT isoelectronic with sulfide, S2-? 

a) Ca2+ 

b) Ar 

c) Cl− 

d) O2-

1 Answer

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  • az_lender
    Lv 7
    10 hours ago

    The O2- is isoelectronic with Neon, not with Argon.  Look at the periodic table, it will be obvious!

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