Pls help due in an hour Valence Electrons: how they increase across the Periodic table (periodic trend), and how they relate to both ionic and covalent bonding?

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

a sonic boom is a loud boom that breaks the sound barrier

explanation:

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