Atomic orbital , the letters associated with those numbers are K, L, M, N, O, ... respectively. The simplest atomic orbitals are those that are calculated for systems with a single electron, such as the hydrogen atom. An atom of any other element ionized down to a single electron is very similar to hydrogen, and the orbitals take the same form. In the Schrödinger equation for this system of one negative and one positive particle, the atomic orbitals are the eigenstates of the Hamiltonian operator for the energy. They can be obtained analytically, meaning that the resulting orbitals are products of a
Graham (given name) Graham (given name) Graham () is a masculine given name in the English language. According to some sources, it comes from an Old English word meaning "grey home". According to other sources, it comes from the surname "Graham", which in turn is an Anglo-French form of the name of the town of Grantham, in Lincolnshire, England. The settlement is recorded in the 11th century "Domesday Book" variously as "Grantham", "Grandham", "Granham" and "Graham". This place name is thought to be derived from the Old English elements "grand", possibly meaning "gravel", and "ham", meaning "hamlet" the English word given to small