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Electronic Configuration

Which of the ...

Question

Which of the following group IA metal(s) form complex hydrides?

A

Na

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B

K

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C

Cs

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D

Li

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Solution

The correct options are
A
Na

D
Li

$L i$ and Sodium form complex metal hydrides like $L i A l H_{4}$ and $N a B H_{4}$ respectively

Hence options:

a) and d)

Other metals from the same group have smaller charge densities and hence do not form complex hydrides

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