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Indium is a Post-Transition element with the symbol In and atomic number 49. Located in period 5, group 13 (p-block), it has an atomic weight of 114.82 u and is classified as a solid at standard temperature and pressure. First identified in 1863 by Ferdinand Reich in Germany. Indium has an electron configuration of [Kr] 4d¹⁰ 5s² 5p¹ with 5 electron shells containing 2, 8, 18, 18, 3 electrons respectively. It is commonly used in: touch screens, lcd displays, solders, leds.
铟是一种后过渡金属元素,符号为In,原子序数为49。位于第5周期,第13族(p区),原子量为114.82 u,在标准温度和压力下为固体。于1863 年首次被确认,由Ferdinand Reich发现。铟的电子排布为[Kr] 4d¹⁰ 5s² 5p¹,具有5个电子层,分别含有2、8、18、18、3个电子。常见用途包括:触摸屏,LCD显示器,焊料,LED。
Basic Properties基本属性
- Atomic Number原子序数
- 49
- Atomic Weight原子量
- 114.82 u
- Category分类
- Post-Transition后过渡金属
- State at STP标准状态
- Solid固体
- Period周期
- 5
- Group族
- 13
- Block区
- p-blockp区
Physical Properties物理性质
- Melting Point熔点
- +156.6°C
- Boiling Point沸点
- +2072°C
- Density密度
- 7.31 g/cm³
- Crystal Structure晶体结构
- Tetragonal四方晶系
- Atomic Radius原子半径
- 156 pm
- Ionic Radius离子半径
- 80 pm
- Electronegativity电负性
- 1.78
Electron Configuration电子排布
- Config电子构型
- [Kr] 4d¹⁰ 5s² 5p¹
- Shells电子层
- 2, 8, 18, 18, 3
- Oxidation States氧化态
- +3
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18631863 年
- Discoverer发现者
- Ferdinand Reich
- Country国家
- Germany德国
Uses & Applications用途
Touch screens, LCD displays, solders, LEDs
触摸屏,LCD显示器,焊料,LED
Common Compounds常见化合物
—
—
Room Temperature常温特性
silvery lustrous gray
银亮灰色
Did You Know? 你知道吗?
The name Indium comes from In and it was first identified in 1863.
铟的名称来源于其符号In,于1863年首次被确认。
Memory Aid记忆口诀
触摸屏的关键材料
Appearance外观
silvery lustrous gray
银亮灰色
Safety Information安全须知
- Handle with standard laboratory precautions. Refer to the Safety Data Sheet (SDS) for detailed handling instructions.
- 按照标准实验室预防措施处理。详细操作说明请参阅安全数据表(SDS)。