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
Block
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

2e⁻
8e⁻
18e⁻
29e⁻
8e⁻
2e⁻

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)。
View Compare 查看对比

Compare Elements元素对比

Full View完整对比

Science Articles 元素科普文章

View all → 查看更多 →

Why Lithium Powers EV Batteries 为什么锂成为了电动汽车电池的关键元素

The chemistry and global supply chain behind the lightest metal driving the EV revolution. 最轻的金属如何驱动电动汽车革命:化学原理与全球供应链。

How Silicon Powers the Digital World 硅如何驱动现代数字世界

From beach sand to billions of transistors — how element 14 built the Information Age. 从海滩沙粒到数十亿晶体管——14号元素如何构建信息时代。

Why Helium Is More Valuable Than You Think 为什么氦比想象的更有价值

Beyond party balloons — helium's irreplaceable role in MRI, semiconductors, and space. 超越派对气球——氦在MRI、半导体和航天中不可替代的角色。