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For alkali metals, which one of the foll...

For alkali metals, which one of the following trends is incorrect ?

A

Hydration energy : `LigtNagtKgtRB`

B

Ionization energy : `LigtNagtKgtRb`

C

Density : `LiltNaltKltRb`

D

Atomic size : `LiltNaltKltRb`

Text Solution

Verified by Experts

The correct Answer is:
C
Density gradually increases on moving down from `Li` to `Cs`. Potassium is, however, lighter than sodium. The abnormal value of potassium is due to unusual increase in atomic size, i.e., atomic volume.
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