Home›Browse›mass gap🌐EnglishEnglishItalianoPortuguês한국어中文日本語EntityQ5357201· pop 5· linked from 19 articlesmass gapSign in to saveenergy difference between ground state and lightest excited state(s)Available in 5 languages中文PortuguêsItaliano한국어via Wikidata sitelinks · CC0