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The set representing the correct order o...

The set representing the correct order of the first ionisation potential is

A

`K gt Na gt Li`

B

`Be gt Mg gt Ca`

C

`B gt C gt N`

D

`Ge gt Si gt C`

Text Solution

Verified by Experts

The correct Answer is:
B
From left to right in a period, the first ionisation potential increases. Down the ground the group, ionisation potential decreases.
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