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Please help!! Help with Valency science? chemistry help?

I need to find the Valency of the following Atoms: Lithium, sodium, magnesium, Aluminium, Phosphorus, oxygen, Nitrogen, Boron, Argon, Neon.Can you tell me aswell, How to find the valency, Can you find the Valency on the periodic table? Please answer as quick as possible!!Thank you 10 point award!!!

Answer:

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Steak and a bake potato
We like to grill eggplantGet the slender Japanese style eggplantCut them in half length-wiseBrush them with olive oil and place on the barbecue grillYou can salt them if you likeDelicious.
BBQ pulled pork sandwhiches
Valency is an arcane term that is not used much any moreDo you mean the number of valence electrons or the number of bonds which can be formed by those valence electronsToday we use oxidation number as the new valenceThe number of valence electrons can be determine from the Roman numeral at the top of each column of the periodic table, with the exception of group VIII, the Iron-cobalt-nickel groupelement.valence electrons.bonds.highest valence (or oxidation number) Lithium 1 valence electron, 1 bond, +1 sodium 1 valence electron, 1 bond, +1 magnesium 2 valence electrons, 2 bonds, +2 Aluminium 3 valence electrons, 3 bonds, +3 Phosphorus 5 valence electrons, 5 bonds, +5 or -3 oxygen 6 valence electrons, 2 bonds, -2 Nitrogen 5 valence electrons, 5 bonds, +5 or -3 Boron 3 valence electrons, 3 bonds, Actually B can form 4 bonds, +3 Argon 8 valence electrons, no bonds, 0 Neon 8 valence electrons, no bonds, 0

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