Rayner-Canham, Geoff (2011-07-01). "Isodiagonality in the periodic table". Foundations of Chemistry. 13 (2): 121–129. doi:10.1007/s10698-011-9108-y. ISSN 1572-8463. S2CID 97285573. /wiki/Doi_(identifier)
Ebbing, Darrell and Gammon, Steven D. (2009). "Atomic Radius". General Chemistry (PDF) (9th ed.). Houghton Mifflin. pp. 312–314. ISBN 978-0-618-93469-0. Archived from the original (PDF) on 2019-02-10. Retrieved 2019-02-10.{{cite book}}: CS1 maint: multiple names: authors list (link) 978-0-618-93469-0
Rayner-Canham, Geoffrey (22 December 2013). Descriptive inorganic chemistry. Overton, Tina (Sixth ed.). New York, NY. ISBN 978-1-4641-2557-7. OCLC 882867766.{{cite book}}: CS1 maint: location missing publisher (link) 978-1-4641-2557-7
Clark, Jim (2005). "Reactions of the Group 2 Elements with Air or Oxygen". chemguide. Retrieved January 30, 2012. http://www.chemguide.co.uk/inorganic/group2/reacto2.html
Clark, Jim (2005). "Reactions of the Group 2 Elements with Air or Oxygen". chemguide. Retrieved January 30, 2012. http://www.chemguide.co.uk/inorganic/group2/reacto2.html
Shriver, Duward (2006). Inorganic Chemistry (4th ed.). Oxford University Press. ISBN 978-0199264636. Li/Mg p. 259; Be/Al p. 274; B/Si p. 288. 978-0199264636