ATOMIC & NUCLEAR PHYSICS PHYSICAL CHEMISTRY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site shell In atomic physics, a set of electrons with the same principal quantum number. The number of electrons permitted in a shell is equal to 2n2. A shell contains n2 orbitals, and n subshells. Related categories    • ATOMIC AND NUCLEAR PHYSICS    • CHEMICAL BONDING    • PHYSICAL CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP