![[N]=1s^22s^22p^3](/tpl/images/0376/2884/27394.png)
![[N]^{3-}=1s^22s^22p^6](/tpl/images/0376/2884/17dd5.png)
![[O]=1s^22s^22p^4](/tpl/images/0376/2884/336ff.png)
![[O]^{2-}=1s^22s^22p^6](/tpl/images/0376/2884/cd710.png)
![[Ne]=1s^22s^22p^6](/tpl/images/0376/2884/5b2f7.png)
are isoelectronic.Which of the following are isoelectronic?
a. k⁺¹, na⁺¹, he
b. mg⁺², o⁻², kr
c. n⁻...
Answers: 1
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