Elements A,B, C,D and E have following electronic configurations :
(A) $1 s^{2}, 2 s^{2} 2 p^{1}$ (B) $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{1}$
(C) $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{3}$ (D) $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{5}$
(E) $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}$
Which among the belongs to same group in the periodic table?

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

A and E

A and D

A and B

A and C

answer is D.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The electronic configuration of Boron is,

$1 s^{2}, 2 s^{2} 2 p^{1}$
The electronic configuration of Aluminum is,

$1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{1}$

Both belongs to same group in the periodic table.

Watch 3-min video & get full concept clarity

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test