GEOLOGY

Detailed explanation-1: -Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell. We can write the configuration of oxygen’s valence electrons as 2s²2p⁴.

Detailed explanation-2: -This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons. In general, atoms are most stable, least reactive, when their outermost electron shell is full.

Detailed explanation-3: -Valency tells us only the total number of electrons present in the outermost shell of the atom and so it is different from the atomic number. Therefore, the outermost shell of an atom is known as valence shell.

Detailed explanation-4: -Electron present in the outermost orbit of an atom and responsible for the emission spectra and the chemical properties of an element are called valence electrons.

Detailed explanation-5: -It is located on the outermost shell (in this case, the shell resembles a ring). The term valence refers to the ability of an element to form bonds with other atoms.