Magnésíọ̀mù (pípè /mæɡˈniːziəm/, mag-NEE-zee-əm) je apilese kemika pelu ami-idamo Mg, nomba atomu 12 ati nomba isodoksijini wiwopo +2. O je onide alkalini inu ile ati apilese pipo repete julo kejo ninu igbele Aye, ninbi to ti je bi 2% fun iposi, ati ikesan ni gbogbo Agbalaaye ti a mo. Bernath, P. F.; Black, J. H. & Brault, J. W. (1985). "The spectrum of magnesium hydride". Astrophysical Journal 298: 375. Bibcode 1985ApJ...298..375B. doi:10.1086/163620. http://bernath.uwaterloo.ca/media/24.pdf.  Bernath, P. F., Black, J. H., & Brault, J. W. (1985). "The spectrum of magnesium hydride". Astrophysical Journal 298: 375. Bibcode 1985ApJ...298..375B. doi:10.1086/163620. http://bernath.uwaterloo.ca/media/24.pdf.  Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named Abundance Housecroft, Catherine E; Sharpe, Alan G. (2007). "Group 2 metals". Inorganic Chemistry (3 ed.). Harlow, England: Pearson.