Cobalt

Cobalt

Cobalt

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Cobalt ΒΆ

AtomicNumber: 27

Element: Cobalt

Symbol: Co

AtomicMass: 58.933

NumberofNeutrons: 32

NumberofProtons: 27

NumberofElectrons: 27

Period: 4

Group: 9.0

Phase: solid

Radioactive: nan

Natural: yes

Metal: yes

Nonmetal: nan

Metalloid: nan

Type: Transition Metal

AtomicRadius: 1.7

Electronegativity: 1.88

FirstIonization: 7.881

Density: 8.86

MeltingPoint: 1768.15

BoilingPoint: 3200.0

NumberOfIsotopes: 14.0

Discoverer: Brandt

Year: 1735.0

SpecificHeat: 0.421

NumberofShells: 4

NumberofValence: nan