Po
Polonium is a Post-Transition element with the symbol Po and atomic number 84. Located in period 6, group 16 (p-block), it has an atomic weight of 209 u and is classified as a solid at standard temperature and pressure. First identified in 1898 by Marie Curie in France. Polonium has an electron configuration of [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴ with 6 electron shells containing 2, 8, 18, 32, 18, 6 electrons respectively. It is commonly used in: anti-static devices, heat source for space probes.
钋是一种后过渡金属元素,符号为Po,原子序数为84。位于第6周期,第16族(p区),原子量为209 u,在标准温度和压力下为固体。于1898 年首次被确认,由Marie Curie发现。钋的电子排布为[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴,具有6个电子层,分别含有2、8、18、32、18、6个电子。常见用途包括:防静电装置,太空探测器热源。
Basic Properties基本属性
- Atomic Number原子序数
- 84
- Atomic Weight原子量
- 209 u
- Category分类
- Post-Transition后过渡金属
- State at STP标准状态
- Solid固体
- Period周期
- 6
- Group族
- 16
- Block区
- p-blockp区
Physical Properties物理性质
- Melting Point熔点
- +254°C
- Boiling Point沸点
- +962°C
- Density密度
- 9.32 g/cm³
- Crystal Structure晶体结构
- Cubic立方晶系
- Atomic Radius原子半径
- 135 pm
- Ionic Radius离子半径
- —
- Electronegativity电负性
- 2
Electron Configuration电子排布
- Config电子构型
- [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴
- Shells电子层
- 2, 8, 18, 32, 18, 6
- Oxidation States氧化态
- -2, +2, +4, +6
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18981898 年
- Discoverer发现者
- Marie Curie
- Country国家
- France法国
Uses & Applications用途
Anti-static devices, heat source for space probes
防静电装置,太空探测器热源
Common Compounds常见化合物
—
—
Room Temperature常温特性
silvery gray
银灰色
Did You Know? 你知道吗?
The name Polonium comes from Po and it was first identified in 1898.
钋的名称来源于其符号Po,于1898年首次被确认。
Memory Aid记忆口诀
Discovered by Marie Curie, named after Poland
居里夫人发现的放射性元素
Appearance外观
silvery gray
银灰色
Safety Information安全须知
- Radioactive — handle only in licensed facilities with proper shielding.
- 放射性元素——仅在持证设施中并使用适当防护的情况下处理。