MCQ
$B{e^{2 + }}$ is isoelectronic with
- A$M{g^{2 + }}$
- B$N{a^ + }$
- ✓$L{i^ + }$
- D${H^ + }$
✓
Answer
Correct option: C.
$L{i^ + }$
c
$Be ^{2+}$ is isoelectronic with $Li ^{+}$.
$Be ^{2+}$ is isoelectronic with $Li ^{+}$.
Both contain $2$ electrons.
They have an electronic configuration $Be ^2=1 s ^2= Li ^{+}$.
This is equal to the electronic configuration of $He$.
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