Sodium atoms

Definition

Sodium atoms are the individual particles of sodium, which is a chemical element represented by the symbol Na. Each sodium atom contains 11 protons and usually 12 neutrons.

Related terms

Atomic number: The atomic number represents the number of protons in an atom's nucleus.

Valence electrons: Valence electrons are the outermost electrons in an atom that participate in chemical reactions.

Ionization energy: Ionization energy refers to the amount of energy needed to remove an electron from an atom or ion.