27
Co
Cobalt
58,933 u
Cobalt
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Chu kỳ
4
Nhóm
9
Khối
d-khối
Pha (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.
Ngoại quan: Hard, lustrous, bluish-gray
Compounds Containing Cobalt
Thêm Kim Loại Chuyển Tiếp
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 kim loại chuyển tiếp.
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.