Ho
Holmium is a Lanthanides element with the symbol Ho and atomic number 67. Located in period 6 (f-block), it has an atomic weight of 164.93 u and is classified as a solid at standard temperature and pressure. First identified in 1878 by Jacques-Louis Soret in Switzerland. Holmium has an electron configuration of [Xe] 4f¹¹ 6s² with 6 electron shells containing 2, 8, 18, 29, 8, 2 electrons respectively. It is commonly used in: strongest magnetic element, lasers, nuclear control.
钬是一种镧系元素元素,符号为Ho,原子序数为67。位于第6周期(f区),原子量为164.93 u,在标准温度和压力下为固体。于1878 年首次被确认,由Jacques-Louis Soret发现。钬的电子排布为[Xe] 4f¹¹ 6s²,具有6个电子层,分别含有2、8、18、29、8、2个电子。常见用途包括:最强磁性元素,激光,核控制。
Basic Properties基本属性
- Atomic Number原子序数
- 67
- Atomic Weight原子量
- 164.93 u
- Category分类
- Lanthanides镧系元素
- State at STP标准状态
- Solid固体
- Period周期
- 6
- Group族
- —
- Block区
- f-blockf区
Physical Properties物理性质
- Melting Point熔点
- +1474°C
- Boiling Point沸点
- +2700°C
- Density密度
- 8.79 g/cm³
- Crystal Structure晶体结构
- Hexagonal Close-Packed (HCP)六方密堆积
- Atomic Radius原子半径
- 176 pm
- Ionic Radius离子半径
- 90 pm
- Electronegativity电负性
- 1.23
Electron Configuration电子排布
- Config电子构型
- [Xe] 4f¹¹ 6s²
- Shells电子层
- 2, 8, 18, 29, 8, 2
- Oxidation States氧化态
- +3
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18781878 年
- Discoverer发现者
- Jacques-Louis Soret
- Country国家
- Switzerland瑞士
Uses & Applications用途
Strongest magnetic element, lasers, nuclear control
最强磁性元素,激光,核控制
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 Holmium comes from Ho and it was first identified in 1878.
钬的名称来源于其符号Ho,于1878年首次被确认。
Memory Aid记忆口诀
The most magnetic element
磁性最强的元素
Appearance外观
silvery white
银白色
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)。