Magnesium
Magnesium
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Magnesium ΒΆ
AtomicNumber: 12
Element: Magnesium
Symbol: Mg
AtomicMass: 24.305
NumberofNeutrons: 12
NumberofProtons: 12
NumberofElectrons: 12
Period: 3
Group: 2.0
Phase: solid
Radioactive: nan
Natural: yes
Metal: yes
Nonmetal: nan
Metalloid: nan
Type: Alkaline Earth Metal
AtomicRadius: 1.7
Electronegativity: 1.31
FirstIonization: 7.6462
Density: 1.74
MeltingPoint: 923.15
BoilingPoint: 1363.0
NumberOfIsotopes: 8.0
Discoverer: Black
Year: 1755.0
SpecificHeat: 1.023
NumberofShells: 3
NumberofValence: 2.0