1.

For alkali metal , which of the following trends is incorrect ?

Answer»

Hydration energy : `LI gt Na gt K gt Rb`
IONIZATION energy : `Li gt Na gt K gt Rb`
DENSITY : `Li lt Na lt K lt Rb`
Atomic size : `Li lt Na lt K lt Rb `

Solution :The density of K is lower than that of Na . THEREFORE , trend (c) is incorrect .


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