Which of the following states that two electrons can occupy the same orbital only if they have opposite spins? hund’s rule dalton’s theory aufbau principle debroglie’s theory pauli exclusion principle

The correct option is PAULI EXCLUSION PRINCIPLE.

Pauli exclusion principle states that two electrons in an atom or a molecule can not have the same four electronic quantum number. Each atomic orbital can accommodate maximum of two electrons which have opposite spins. The spins usually have some values attached to them. An orbital with two spins in opposite direction is a filled orbital and the orbital will not be able to accommodate another one except one of those inside is removed.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error