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Photoelectric effect is the maximum in...

Photoelectric effect is the maximum in

A

`Cs`

B

`Na`

C

`K`

D

`Li`

Text Solution

Verified by Experts

The correct Answer is:
A
Group `I` elements are so highly electropositive that they emit electron even when exposed to light (photoelectric effect) and this character increase on moving down the group from lithium towards cesium.
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