1.

Which of the following sets can be called isoelectronic species ?A. `Na^(+), Mg^(+)`B. `NA, Mg^(+)`C. Na, MgD. `Na, Mg^(++)`

Answer» Correct Answer - B
`""_(11)Na=1s^(2) 2s^(2) 2p^(6) 3s^(1),""_(12)Mg^(+)=1s^(2) 2s^(2) 3p^(6) 3s^(1)`


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