Population analysis Population statistics 10 Chemical bonds 8 Molecular dynamics 6 Molecular systems 6 Carrier concentration 4 Electron-density topology 4 Electronic distribution 4 First-order 4 Integration 4 Molecules 4 Multicenter bonds 4 Numerical example 4 Semi-empirical 4 Topology 4 Unpaired densities 4 2D layer 2 Ab initio 2 Adsorption 2 Analytical model 2 Atomic adsorptions 2 Atomic physics 2 Binding energy 2 Bond indices 2 Bond orders 2 Chemical bondings 2 Chemisorption 2 Chemisorption bond 2 Correlated wave functions 2 Crystalline materials 2