NCERT Class XI Chemistry Structure of Atom Solutions

Question : 22

Total: 67

Which of the following are isoelectronic species i.e., those having the same number of electrons?
Na+,K+,Mg2+,Ca2+,S2–,Ar

Solution:

Thus Na+ and K+,Mg2+,Ca2+,S2– and Ar have the same number of electrons.

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