Editing Electron density (section)

== Experiments ==
Many experimental techniques can measure electron density. For example, [[quantum crystallography]] through [[X-ray diffraction]] scanning, where X-rays of a suitable wavelength are targeted towards a sample and measurements are made over time, gives a probabilistic representation of the locations of electrons. From these positions, molecular structures, as well as accurate charge density distributions, can often be determined for crystallised systems. [[Quantum electrodynamics]] and some branches of [[quantum field theory]] also study and analyse electron [[superposition principle|superposition]] and other related phenomena, such as the [[Non-covalent interactions index|NCI index]] which permits the study of [[non-covalent interactions]] using electron density. [[Mulliken population analysis]] is based on electron densities in molecules and is a way of dividing the density between atoms to give an estimate of atomic charges.

In [[transmission electron microscopy]] (TEM) and [[deep inelastic scattering]], as well as other [[high energy particle]] experiments, high energy electrons interacts with the electron cloud to give a direct representation of the electron density. TEM, [[Scanning tunneling microscope|scanning tunneling microscopy]] (STM) and [[Atomic-force microscopy|atomic force microscopy]] (AFM) can be used to probe the electron density of specific individual atoms.{{Citation needed|date=February 2017}}