In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure)...

This page shows the electron configurations of the neutral gaseous atoms in their ground states. For each atom the subshells are given first in concise...

(period) is started when a new electron shell has its first electron. Columns (groups) are determined by the electron configuration of the atom; elements with...

determining their respective electron configuration (EC). Nuclear charge: If the nuclear charge (atomic number) is greater, the electrons are held more tightly...

The d electron count or number of d electrons is a chemistry formalism used to describe the electron configuration of the valence electrons of a transition...

Configurations of elements 109 and above are not available. Predictions from reliable sources have been used for these elements. Grayed out electron numbers...

the 1s subshell has 2 electrons, the 2s subshell has 2 electrons, the 2p subshell has 6 electrons, and so on. The configuration is often abbreviated by...

represents an actual value of a physical quantity. For a given electron configuration of an atom, its state depends also on its total angular momentum...

matter. In this model, the electron cloud of an atom may be seen as being built up (in approximation) in an electron configuration that is a product of simpler...

dependent upon its electronic configuration. For a main-group element, a valence electron can exist only in the outermost electron shell; for a transition metal...

to 2(n2) electrons. For an explanation of why electrons exist in these shells, see electron configuration. Each shell consists of one or more subshells...

some disagreement on which configuration has the lower energy. Chemistry textbooks quote nickel's electron configuration as [Ar] 4s2 3d8, also written...

The rule is based on the fact that the valence orbitals in the electron configuration of transition metals consist of five (n−1)d orbitals, one ns orbital...

chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs...

other chemical substances, results from their electron configuration: their outer shell of valence electrons is "full", giving them little tendency to participate...

predation. Fluorine atoms have nine electrons, one fewer than neon, and electron configuration 1s22s22p5: two electrons in a filled inner shell and seven...

losing, or sharing electrons until they have achieved a valence shell electron configuration with a full octet of (8) electrons, hydrogen instead obeys...

non-bonded electrons as a lone pair in an sp orbital and the other two occupying a degenerate pair of p orbitals. The electron configuration is consistent...

that n = 4, the first 18 electrons have the same configuration of Ar at the end of period 3, and the overall configuration is [Ar]3d24s2. The period...

element 164 with a 7d109s0 electron configuration shows clear analogies with palladium with its 4d105s0 electron configuration. The noble metals of this...

nonmetal) with greater electron affinity accepts one or more electrons to attain a stable electron configuration, and after accepting electrons an atom becomes...

table. All alkali metals have their outermost electron in an s-orbital: this shared electron configuration results in their having very similar characteristic...

repulsion. B and C correspond with individual d-electron repulsions. A is constant among d-electron configuration, and it is not necessary for calculating relative...

few electrons short of a stable configuration. As such, they have the tendency to gain more electrons in order to achieve a stable configuration. This...

AO, thus not contributing to bonding energetics. The resulting electron configuration can be described in terms of bond type, parity and occupancy for...

referred to simply as Hund's Rule. The three rules are: For a given electron configuration, the term with maximum multiplicity has the lowest energy. The multiplicity...

for more details.) For an explanation of why electrons exist in these shells see electron configuration. If the potential energy is set to zero at infinite...

has 4 electrons in its valence shell, hence valence electron configuration ns2np2. For flerovium, the trend will continue and the valence electron configuration...

a completely consistent set of electron configurations. This distinctive electron configuration, with a single electron in the highest occupied s subshell...

sometimes requiring identity of the total electron count and with it the entire electronic configuration. More usually, definitions are broader, and...