1.what is the element that has more valence electrons than oxygen and less valence electrons than neon, and has more protons than sodium but fewer protons than argon?2What element has an atomic number lower than aluminum and one less valence electron than the group 16 elements
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1) Chlorine As oxygen is in group 16 and neon in group 18, the element asked for is in group 17 (more valence than group 16, less than group 18)It has to have more protons than sodium but fewer than argon, meaning it's in period 3 (from Na to Ar)Therefore, the answer is chlorine2) Nitrogen An atomic number lower than aluminium would mean it simply has to appear before Al firstlyTo have one less valence electron than the group 16 elements, would mean it would have to be in group 15The only element that appear before Al and is in group 15 is nitrogen Hope that helps! :)
