Question

Explain why 4s<3d? PLEASE IT URGENT I WILL MARK AS BRAINLIST

Answer 1

Explanation:

we know that 4s electrons are lost first during ionization

Answer 2

Explanation:

4s<3d , it is due to the n+l rule given by Aufbau

in 4s----->n=4 and l=0 =>n+l=4

in 3d----->n=3 and l=2 =>n+l=5

since n+l of 3d is greater than n+l of 4s

therefore 4s<3d

hope u mark it as brainliest