3 Li Lithium 6,941 u

Lithium

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Период
2
Группа
1
Блок
s-Блок
Фаза (СТУ)
Solid

Lithium is the lightest metal and the least dense solid element. It is widely used in rechargeable batteries and psychiatric medication.

Внешний вид: Silvery-white

Физические свойства

Атомная масса 6.941 u
Плотность 0.534 g/cm³
Температура плавления 180.5 °C
Температура кипения 1329.8 °C
Фаза при СТУ Solid
Атомный радиус 167.0 pm

Электронные свойства

Электроотрицательность 0.98
Энергия ионизации 520.2 eV
Сродство к электрону 59.6 eV
Валентные электроны 1

Электронная конфигурация

Конфигурация [He] 2s¹

Electron Shell Configuration

Lithium electron shell configuration Li 2e⁻ 1e⁻

Position in Periodic Table

Lithium position in the periodic table Li

Открытие

Открыт: Johan August Arfwedson
Год: 1817

Compounds Containing Lithium

Больше Щелочной металл

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Frequently Asked Questions

What is Lithium?
Lithium (Li) is a chemical element with atomic number 3. It is a solid at standard temperature and pressure, classified as a щелочной металл.
What are the key properties of Lithium?
Lithium has an atomic mass of 6.941 u, density of 0.534 g/cm³, melting point of 180.5°C, boiling point of 1329.8°C.
What is the electron configuration of Lithium?
The electron configuration of Lithium is [He] 2s1. It is in the s-block of the periodic table.
Who discovered Lithium?
Lithium was discovered by Johan August Arfwedson in 1817.
What is the electronegativity of Lithium?
Lithium has an electronegativity of 0.98 on the Pauling scale.