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Be^(2+) is isoelectronic with which of t...

`Be^(2+)` is isoelectronic with which of the following ions ?

A

`H^(+)`

B

`Li^(+)`

C

`Na^(+)`

D

`Mg^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
B
Both `Be^(2+)` and `Li^(+)` have two electrons `(1 s^(2))` and hence are isoelectronic .
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Knowledge Check

  • Ag^+ ion is isoelectronic with which of the following ion?

    A
    `Cd^(+2)`
    B
    `Au^(+3)`
    C
    `Pt^(+1)`
    D
    `Pt^(+3)`

  • CN^(-) ion isoelectronic with -

    A
    `N_(2)`
    B
    CO
    C
    both a & b
    D
    none

  • Mg^(2+) ion is isoelectronic with

    A
    `Na^+`
    B
    `Ca^(2+)`
    C
    `Ar`
    D
    None of these

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