Xe
Xenon is a Noble Gases element with the symbol Xe and atomic number 54. Located in period 5, group 18 (p-block), it has an atomic weight of 131.29 u and is classified as a gas at standard temperature and pressure. First identified in 1898 by William Ramsay in Scotland. Xenon has an electron configuration of [Kr] 4d¹⁰ 5s² 5p⁶ with 5 electron shells containing 2, 8, 18, 18, 8 electrons respectively. It is commonly used in: car headlights, ion thrusters, anesthesia, strobe lights.
氙是一种稀有气体元素，符号为Xe，原子序数为54。位于第5周期，第18族（p区），原子量为131.29 u，在标准温度和压力下为气体。于1898 年首次被确认，由William Ramsay发现。氙的电子排布为[Kr] 4d¹⁰ 5s² 5p⁶，具有5个电子层，分别含有2、8、18、18、8个电子。常见用途包括：汽车大灯，离子推进器，麻醉，频闪灯。
Basic Properties基本属性
- Atomic Number原子序数
- 54
- Atomic Weight原子量
- 131.29 u
- Category分类
- Noble Gases稀有气体
- State at STP标准状态
- Gas气体
- Period周期
- 5
- Group族
- 18
- Block区
- p-blockp区
Physical Properties物理性质
- Melting Point熔点
- -111.8°C
- Boiling Point沸点
- -108°C
- Density密度
- 0.005887 g/cm³
- Crystal Structure晶体结构
- Face-Centered Cubic (FCC)面心立方
- Atomic Radius原子半径
- 108 pm
- Ionic Radius离子半径
- 48 pm
- Electronegativity电负性
- 2.6
Electron Configuration电子排布
- Config电子构型
- [Kr] 4d¹⁰ 5s² 5p⁶
- Shells电子层
- 2, 8, 18, 18, 8
- Oxidation States氧化态
- 0, +2, +4, +6
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18981898 年
- Discoverer发现者
- William Ramsay
- Country国家
- Scotland苏格兰
Uses & Applications用途
Car headlights, ion thrusters, anesthesia, strobe lights
汽车大灯，离子推进器，麻醉，频闪灯
Common Compounds常见化合物
—
—
Room Temperature常温特性
colorless gas
无色气体
Did You Know? 你知道吗？
The name Xenon comes from Xe and it was first identified in 1898.
氙的名称来源于其符号Xe，于1898年首次被确认。
Memory Aid记忆口诀
Bright blue-white light in headlamps
氙气大灯的光源
Appearance外观
colorless gas
无色气体
Safety Information安全须知
- Generally inert and non-toxic. Asphyxiation risk only in confined spaces at high concentrations.
- 通常为惰性无毒气体。仅在密闭空间高浓度时有窒息风险。