MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Aufbau Principle

Which of the ...

Question

Which of the following atoms violate Aufbau principle?

A

Cu

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Cr

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Both A and B

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Both A and B
The outer electronic configuration for Cr and Cu are
$[A r] 3 d^{5} 4 s^{1}$ and $[A r] 3 d^{10} 4 s^{1}$ respectively.
Here, 3d is filled before the complete filling of 4s orbital which violates Aufbau principle.

Suggest Corrections

thumbs-up

0

Similar questions

Q. While writing the following electronic configuration of Fe atom, which rules have been violated?

I. Aufbau principle II. Hund’s rule III. Pauli’s exclusion principle

Q. The orbital diagram in which the Aufbau principle violated is:

Q. In the following electronic arrangement, which of the following is violated?

I: Hund's rule
II: Pauli's exclusion principle
III: Aufbau principle

Q. The orbital diagram in which Aufbau principle is violated, is:

Q. The orbital diagram in which the aufbau principle is not violated:

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Aufbau Principle

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon