27 Co Cobalt 58,933 u

Cobalt

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Период
4
Группа
9
Блок
d-Блок
Фаза (СТУ)
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.

Внешний вид: Hard, lustrous, bluish-gray

Физические свойства

Атомная масса 58.933 u
Плотность 8.9 g/cm³
Температура плавления 1494.8 °C
Температура кипения 2926.8 °C
Фаза при СТУ Solid
Атомный радиус 152.0 pm

Электронные свойства

Электроотрицательность 1.88
Энергия ионизации 760.4 eV
Сродство к электрону 63.7 eV
Валентные электроны 9

Электронная конфигурация

Конфигурация [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

Открытие

Открыт: Georg Brandt
Год: 1735

Блок и период

Период

Периодическая таблица

Лантаниды Актиниды

Compounds Containing Cobalt

Больше Переходный металл

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 переходный металл.
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.