Li
Lithium is a Alkali Metals element with the symbol Li and atomic number 3. Located in period 2, group 1 (s-block), it has an atomic weight of 6.94 u and is classified as a solid at standard temperature and pressure. First identified in 1817 by Johan August Arfwedson in Sweden. Lithium has an electron configuration of [He] 2s¹ with 2 electron shells containing 2, 1 electrons respectively. It is commonly used in: batteries, ceramics, glass, mood stabilizer medication.
锂是一种碱金属元素,符号为Li,原子序数为3。位于第2周期,第1族(s区),原子量为6.94 u,在标准温度和压力下为固体。于1817 年首次被确认,由Johan August Arfwedson发现。锂的电子排布为[He] 2s¹,具有2个电子层,分别含有2、1个电子。常见用途包括:电池,陶瓷,玻璃,情绪稳定剂药物。
Basic Properties基本属性
- Atomic Number原子序数
- 3
- Atomic Weight原子量
- 6.94 u
- Category分类
- Alkali Metals碱金属
- State at STP标准状态
- Solid固体
- Period周期
- 2
- Group族
- 1
- Block区
- s-blocks区
Physical Properties物理性质
- Melting Point熔点
- +180.54°C
- Boiling Point沸点
- +1342°C
- Density密度
- 0.53 g/cm³
- Crystal Structure晶体结构
- Body-Centered Cubic (BCC)体心立方
- Atomic Radius原子半径
- 167 pm
- Ionic Radius离子半径
- 76 pm
- Electronegativity电负性
- 0.98
Electron Configuration电子排布
- Config电子构型
- [He] 2s¹
- Shells电子层
- 2, 1
- Oxidation States氧化态
- +1
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18171817 年
- Discoverer发现者
- Johan August Arfwedson
- Country国家
- Sweden瑞典
Uses & Applications用途
Batteries, ceramics, glass, mood stabilizer medication
电池,陶瓷,玻璃,情绪稳定剂药物
Common Compounds常见化合物
—
—
Room Temperature常温特性
silvery white
银白色
Did You Know? 你知道吗?
The name Lithium comes from Li and it was first identified in 1817.
锂的名称来源于其符号Li,于1817年首次被确认。
Memory Aid记忆口诀
Li for lithium-ion batteries
锂电池的锂
Appearance外观
silvery white
银白色
Safety Information安全须知
- Extremely reactive with water — store under mineral oil. Can cause fire or explosion on water contact.
- 与水极度反应——储存于矿物油中。遇水可引发火灾或爆炸。