What roles do valence electrons play in atomic bonding?

Explanation:

Valence electrons are outer shell electrons with an atom and can participate in the formation of chemical bonds. In single covalent bonds, typically both atoms in the bond contribute one valence electron in order to form a shared pair. The ground state of an atom is the lowest energy state of the atom.  

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Valence electrons are the electrons in the outer shell of the atom, with the highest level of energy and that is where all of the chemical reactions and fun things happen.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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