Electron shell

Definition

An electron shell is a group of atomic orbitals with the same principal quantum number, n, indicating its distance and energy level relative to the nucleus in an atom. These shells define the distribution of electrons around an atom's nucleus and are crucial for determining how atoms interact in chemical bonding.

Related terms

Atomic Orbital:

A region of space around an atom's nucleus where there is a high probability of finding an electron.

Valence Electrons:

Electrons in the outermost electron shell of an atom that are involved in forming chemical bonds.

Quantum Number: A set of numerical values that describe characteristics of electrons within atoms, including their energy levels and positions in orbitals