I filled two out of three of the blanks. stuck on the last one Electronegativity tends to decrease as you go down a ___group and increase as you go across a period. Atoms of elements on the right side of the periodic table have a greater attraction for valence electrons thus resulting in electronegativity.

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.

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