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How does the ionisation energy of 1st gr...

How does the ionisation energy of 1st group elements very ?

A

increases down the group

B

decrease down the groups

C

remains unchanged

D

variation is not regular

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Verified by Experts

The correct Answer is:
B
Ionisation energy decreases down the group
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DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
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