Some elements located on the periodic table in groups 3 to 12 have valence electrons in the d- or f- orbitals. what are these elements called? a. representative elementsb. transitional elements c. actinidesd. lanthinides

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

mention the spill to the teacher clean the area and throw the broken pieces away

explanation: