🌐EnglishEnglishDeutschEspañolFrançaisItalianoРусскийالعربيةفارسی中文日本語EntityQ900431· pop 11· linked from 56 articlesThomas–Fermi modelprimitive quantum mechanical model of electronic structureAvailable in 11 languagesEspañolFrançaisDeutsch日本語РусскийItalianoالعربيةBulgarianUkrainianConnectionsexchange interaction of particlesEntityquantum mechanicsEntityCategoriesAtomic physicsDensity functional theory