5-8 Valence Electrons

The atomic number represents the number of protons in the nucleus of an atom.

An s sublevel can hold a maximum of 2 electrons.

The 4s sublevel starts filling after 3p.

The electron configuration for carbon is 1s² 2s² 2p².

The order of fill for the sublevels is 1s, 2s, 2p, 3s, 3p.

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Carbon has 4 valence electrons.

Valence electrons determine how an atom can bond with other atoms and participate in chemical reactions.

Groups 15 (5 valence electrons), 16 (6 valence electrons), and 17 (7 valence electrons) of the periodic table typically have 5-8 valence electrons.

The maximum number of electrons in the outer shell of an atom is 8, following the octet rule.