Question

The incorrect statement about d-orbitals A. It is not present in first two principle energy levels B. They are associated with only transition elements C. They are five degenerate orbitals in d-subshell D. d-orbitals can filled before p-orbitals in the same principle energy level​

Answer 1

Answer:

answer is d because according to aufbau principle electrons are filled in lower energy orbitals first and we determine energy using n+l rule and in a particular shell p orbital has less energy than d orbital so p orbital gets fille first

Answer 2

Answer

Option (d)

Explanation:

According to aufbau principle:

"Those orbitals are filled first whose (n+l) value is smaller than others."

where n=Principal quantum number

l=Azimuthal quantum number

Now,in same Principal energy level have same"n"value and we will decide the filling order on Azimuthal quantum number.

P orbital has l value 1 and D orbital has 2 .

so p will fill first.