Which of the following statements is true?

Question 4Answer

An electron in a 2s orbital can have the same n, ℓ, and ml quantum numbers as an electron in a 3s orbital.

A.The exact location of an electron can be determined if we know its energy.


B.In the buildup of atoms, electrons occupy the 4f orbitals before the 6s orbitals.


C.Only three quantum numbers are needed to uniquely describe an electron.


D.Ni has two unpaired electrons in its 3d orbitals