12Mg
Magnesium
마그네슘 · マグネシウム
Alkaline earth
Atomic number12
ElementMg — Magnesium
Atomic mass24.305
CategoryAlkaline earth
Group2
Period3
Electron config[Ne] 3s2
Shells2,8,2
State (RT)Solid
Melting pt650°C
Boiling pt1090°C
Electronegativity1.31
Discovered1755
Main usesLightweight alloys, fireworks
2 · 8 · 2