Sodium
Sodium
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Sodium ΒΆ
AtomicNumber: 11
Element: Sodium
Symbol: Na
AtomicMass: 22.99
NumberofNeutrons: 12
NumberofProtons: 11
NumberofElectrons: 11
Period: 3
Group: 1.0
Phase: solid
Radioactive: nan
Natural: yes
Metal: yes
Nonmetal: nan
Metalloid: nan
Type: Alkali Metal
AtomicRadius: 2.2
Electronegativity: 0.93
FirstIonization: 5.1391
Density: 0.971
MeltingPoint: 371.15
BoilingPoint: 1156.0
NumberOfIsotopes: 7.0
Discoverer: Davy
Year: 1807.0
SpecificHeat: 1.228
NumberofShells: 3
NumberofValence: 1.0