Ne
Neon is a Noble Gases element with the symbol Ne and atomic number 10. Located in period 2, group 18 (p-block), it has an atomic weight of 20.18 u and is classified as a gas at standard temperature and pressure. First identified in 1898 by William Ramsay in Scotland. Neon has an electron configuration of [He] 2s² 2p⁶ with 2 electron shells containing 2, 8 electrons respectively. It is commonly used in: neon signs, high-voltage indicators, lasers.
氖是一种稀有气体元素,符号为Ne,原子序数为10。位于第2周期,第18族(p区),原子量为20.18 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。氖的电子排布为[He] 2s² 2p⁶,具有2个电子层,分别含有2、8个电子。常见用途包括:霓虹灯,高压指示器,激光。
Basic Properties基本属性
- Atomic Number原子序数
- 10
- Atomic Weight原子量
- 20.18 u
- Category分类
- Noble Gases稀有气体
- State at STP标准状态
- Gas气体
- Period周期
- 2
- Group族
- 18
- Block区
- p-blockp区
Physical Properties物理性质
- Melting Point熔点
- -248.59°C
- Boiling Point沸点
- -246.08°C
- Density密度
- 0.0008999 g/cm³
- Crystal Structure晶体结构
- Face-Centered Cubic (FCC)面心立方
- Atomic Radius原子半径
- 38 pm
- Ionic Radius离子半径
- —
- Electronegativity电负性
- —
Electron Configuration电子排布
- Config电子构型
- [He] 2s² 2p⁶
- Shells电子层
- 2, 8
- Oxidation States氧化态
- 0
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
Neon signs, high-voltage indicators, lasers
霓虹灯,高压指示器,激光
Common Compounds常见化合物
—
—
Room Temperature常温特性
colorless gas (glows red-orange)
无色气体(通电发红橙色光)
Did You Know? 你知道吗?
The name Neon comes from Ne and it was first identified in 1898.
氖的名称来源于其符号Ne,于1898年首次被确认。
Memory Aid记忆口诀
Neon glows bright red
霓虹灯的霓
Appearance外观
colorless gas (glows red-orange)
无色气体(通电发红橙色光)
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。