3 Li Lithium 6.941 u

Lithium

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周期
2
1
区块
s-区块
相态 (STP)
Solid

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

外观: 银白色金属

物理属性

原子质量 6.941 u
密度 0.534 g/cm³
熔点 180.5 °C
沸点 1329.8 °C
STP相态 Solid
原子半径 167.0 pm

电子属性

电负性 0.98
电离能 520.2 eV
电子亲和能 59.6 eV
价电子 1

电子构型

构型 [He] 2s¹

Electron Shell Configuration

Lithium electron shell configuration Li 2e⁻ 1e⁻

Position in Periodic Table

Lithium position in the periodic table Li

发现

发现者: Johan August Arfwedson
年份: 1817

Compounds Containing Lithium

更多碱金属

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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 碱金属.
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.