Home›Browse›double bond rule🌐EnglishEnglishEspañolFrançaisРусский한국어中文日本語EntityQ5299973· pop 8· linked from 30 articlesdouble bond ruleSign in to savereduced tendency of main-group elements after period 2 to form stable multiple bondsAvailable in 8 languagesEspañolFrançais日本語CzechTamilUkrainian한국어via Wikidata sitelinks · CC0