First slide

Atomic and physical properties

Question

Which of the following is correct with respect to the atomic size in 13^th group?

Moderate

A

B < Ga < Al < In < Tl
B

B < Al < Ga < In < Tl
C

B < Al < In < Ga < Tl
D

Ga < B < Al < In < Tl

Solution

r_Ga (135 pm) < r_Al (143 pm). It is because of the effect of 3d¹⁰ electrons in Ga which have poor shielding on force of nucleus on electrons of the valence shell.

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App