3 Li Lithium 6.941 u

Lithium

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주기
2
1
블록
s-블록
상 (표준 상태)
Solid

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

외관: 은백색

물리적 성질

원자 질량 6.941 u
밀도 0.534 g/cm³
녹는점 180.5 °C
끓는점 1329.8 °C
표준 상태에서의 상 Solid
원자 반지름 167.0 pm

전자적 성질

전기 음성도 0.98
이온화 에너지 520.2 eV
전자 친화도 59.6 eV
원자가 전자 1

전자 배치

배치 [He] 2s¹

Electron Shell Configuration

Lithium electron shell configuration Li 2e⁻ 1e⁻

Position in Periodic Table

Lithium position in the periodic table Li

발견

발견자: Johan August Arfwedson
연도: 1817

Compounds Containing Lithium

더 많은 알칼리 금속

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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 알칼리 금속.
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.