Aardalkalimetaal: Verskil tussen weergawes
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== Verwysings ==
{{CommonsKategorie-inlyn|Alkaline earth metals}}
{{Wikt-inlyn|aardalkalimetaal}}
* [http://www.chemsoc.org/visElements/pages/data/intro_groupii_data.html Group 2 - Alkaline Earth Metals], Royal Chemistry Society.
* [http://web.archive.org/web/20060925151708/http://www.wpbschoolhouse.btinternet.co.uk/page07/sblock.htm Group 1 Alkali Metals and Group 2 Alkaline Earth Metals], Doc Brown's Chemistry Clinic.
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