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Which of the following statements are co...

Which of the following statements are correct?

A

Helium has the highest first ionisation enthalpy in the periods table.

B

Chlorine has less negative electron gain enthalpy than fluorine.

C

Mercury and bromine are liquids at room temperature.

D

In any period, atomic radius of alkali metal is the highest.

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
(a,c,d) Chlorine has more negative electron gain enthalpy than fluorine. Therefore, all other given statements are correct.
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