12 Mg Magnesium 24,305 u

Magnesium

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Период
3
Группа
2
Блок
s-Блок
Фаза (СТУ)
Solid

Magnesium is a lightweight alkaline earth metal essential for living cells. It burns with a bright white flame and is used in alloys and fireworks.

Внешний вид: Shiny grey solid

Физические свойства

Атомная масса 24.305 u
Плотность 1.738 g/cm³
Температура плавления 649.9 °C
Температура кипения 1089.8 °C
Фаза при СТУ Solid
Атомный радиус 145.0 pm

Электронные свойства

Электроотрицательность 1.31
Энергия ионизации 737.7 eV
Валентные электроны 2

Электронная конфигурация

Конфигурация [Ne] 3s²

Electron Shell Configuration

Magnesium electron shell configuration Mg 2e⁻ 8e⁻ 2e⁻

Position in Periodic Table

Magnesium position in the periodic table Mg

Открытие

Открыт: Joseph Black
Год: 1755

Compounds Containing Magnesium

Больше Щёлочноземельный металл

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Frequently Asked Questions

What is Magnesium?
Magnesium (Mg) is a chemical element with atomic number 12. It is a solid at standard temperature and pressure, classified as a щёлочноземельный металл.
What are the key properties of Magnesium?
Magnesium has an atomic mass of 24.305 u, density of 1.738 g/cm³, melting point of 649.9°C, boiling point of 1089.8°C.
What is the electron configuration of Magnesium?
The electron configuration of Magnesium is [Ne] 3s2. It is in the s-block of the periodic table.
Who discovered Magnesium?
Magnesium was discovered by Joseph Black in 1755.
What is the electronegativity of Magnesium?
Magnesium has an electronegativity of 1.31 on the Pauling scale.