24 Cr Chromium 51,996 u

Chromium

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Период
4
Группа
6
Блок
d-Блок
Фаза (СТУ)
Solid

Chromium is a hard, lustrous transition metal prized for its mirror finish. It is essential in stainless steel production and chrome plating.

Внешний вид: Silvery metallic

Физические свойства

Атомная масса 51.996 u
Плотность 7.15 g/cm³
Температура плавления 1906.8 °C
Температура кипения 2670.8 °C
Фаза при СТУ Solid
Атомный радиус 166.0 pm

Электронные свойства

Электроотрицательность 1.66
Энергия ионизации 652.9 eV
Сродство к электрону 64.3 eV
Валентные электроны 6

Электронная конфигурация

Конфигурация [Ar] 3d⁵ 4s¹

Electron Shell Configuration

Chromium electron shell configuration Cr 2e⁻ 8e⁻ 13e⁻ 1e⁻

Position in Periodic Table

Chromium position in the periodic table Cr

Открытие

Открыт: Louis Nicolas Vauquelin
Год: 1797

Блок и период

Период

Периодическая таблица

Лантаниды Актиниды

Compounds Containing Chromium

Больше Переходный металл

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Frequently Asked Questions

What is Chromium?
Chromium (Cr) is a chemical element with atomic number 24. It is a solid at standard temperature and pressure, classified as a переходный металл.
What are the key properties of Chromium?
Chromium has an atomic mass of 51.996 u, density of 7.15 g/cm³, melting point of 1906.8°C, boiling point of 2670.8°C.
What is the electron configuration of Chromium?
The electron configuration of Chromium is [Ar] 3d5 4s1. It is in the d-block of the periodic table.
Who discovered Chromium?
Chromium was discovered by Louis Nicolas Vauquelin in 1797.
What is the electronegativity of Chromium?
Chromium has an electronegativity of 1.66 on the Pauling scale.