Chemistry-
General
Easy
Question
What will be the order of Ist ionisation energy
- (a) Li > Na > K
- K > Li > Na
- (c) Na > Li > K
- Li > K > Na
The correct answer is: (a) Li > Na > K
In a group, the ionisation potential decreases from top to bottom. In the alkali group, the ionisation potential decreases from Li to Cs.
LiNaKRbCs
eV5.35.14.34.23.9
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