Which element has more valence electrons (electrons in the outermost shell) than oxygen fewer valence electrons than neon more protons than sodium but fewer protons than argon.?

The element that fits all these criteria is phosphorus (P). Phosphorus has 5 valence electrons, which is more than oxygen (6 valence electrons), fewer than neon (8 valence electrons), and has 15 protons, which is more than sodium (11 protons) but fewer than argon (18 protons).