27 Co Cobalt 58.933 u

Cobalt

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周期
4
9
区块
d-区块
相态 (STP)
Solid

Cobalt is a hard, lustrous transition metal used in superalloys and blue pigments. It is a key component of lithium-ion batteries and vitamin B12.

外观: 银白色金属

物理属性

原子质量 58.933 u
密度 8.9 g/cm³
熔点 1494.8 °C
沸点 2926.8 °C
STP相态 Solid
原子半径 152.0 pm

电子属性

电负性 1.88
电离能 760.4 eV
电子亲和能 63.7 eV
价电子 9

电子构型

构型 [Ar] 3d⁷ 4s²

Electron Shell Configuration

Cobalt electron shell configuration Co 2e⁻ 8e⁻ 15e⁻ 2e⁻

Position in Periodic Table

Cobalt position in the periodic table Co

发现

发现者: Georg Brandt
年份: 1735

元素周期表

镧系元素 锕系元素

Compounds Containing Cobalt

更多过渡金属

Frequently Asked Questions

What is Cobalt?
Cobalt (Co) is a chemical element with atomic number 27. It is a solid at standard temperature and pressure, classified as a 过渡金属.
What are the key properties of Cobalt?
Cobalt has an atomic mass of 58.933 u, density of 8.9 g/cm³, melting point of 1494.8°C, boiling point of 2926.8°C.
What is the electron configuration of Cobalt?
The electron configuration of Cobalt is [Ar] 3d7 4s2. It is in the d-block of the periodic table.
Who discovered Cobalt?
Cobalt was discovered by Georg Brandt in 1735.
What is the electronegativity of Cobalt?
Cobalt has an electronegativity of 1.88 on the Pauling scale.