"The way in which electrons are distributed among the various orbitals is called the electron configuration."
"Orbitals are filled in order of increasing energy, with no more than two electrons
"The electron configuration of an atom is a form of notation which shows how the
electrons are distributed among the various atomic orbital and energy levels. The format consists of a series of numbers,
letters and superscripts."
"The number of sublevels that an energy level can contain is equal to the principle
quantum number of that level."
"An orbital is a space that can be occupied by up to two electrons. Each type
of sublevel holds a different number or orbitals, and therefore, a different number of electrons. s sublevels have one
orbital, which can hold up to two electrons. p sublevels have three orbitals, each of which can hold 2 electrons, for
a total of 6. d sublevels have 5 orbitals, for a possible total of 10 electrons. f sublevels, with 7 orbitals,
can hold up to 14 electrons."
"An easy way to calculate the number of orbitals found in an energy level is to
use the formula n2."
"An easy way to calculate the total number of electrons that
can be held by a given energy level is to use the formula 2n2."