Question

If an atom of an element has 8 electrons in a subshell having five orientations of the fourth energy level. Write the electronic configuration of the element and the four quantum numbers for valence electrons.

Answer 1

If an atom of an element has 8 electrons in a subshell having five orientations of the fourth energy level, then its electron configuration is:
[Kr] 4d⁸ 5s¹ or 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁸.

The atomic number of the element is 45 and the element is rhodium.

Four quantum numbers of valence electron are 5 0 0 +1/2