Dy
Dysprosium is a Lanthanides element with the symbol Dy and atomic number 66. Located in period 6 (f-block), it has an atomic weight of 162.5 u and is classified as a solid at standard temperature and pressure. First identified in 1886 by Paul-Emile Lecoq de Boisbaudran in France. Dysprosium has an electron configuration of [Xe] 4f¹⁰ 6s² with 6 electron shells containing 2, 8, 18, 28, 8, 2 electrons respectively. It is commonly used in: magnets, nuclear control rods, lasers.
镝是一种镧系元素元素，符号为Dy，原子序数为66。位于第6周期（f区），原子量为162.5 u，在标准温度和压力下为固体。于1886 年首次被确认，由Paul-Emile Lecoq de Boisbaudran发现。镝的电子排布为[Xe] 4f¹⁰ 6s²，具有6个电子层，分别含有2、8、18、28、8、2个电子。常见用途包括：磁铁，核控制棒，激光。
Basic Properties基本属性
- Atomic Number原子序数
- 66
- Atomic Weight原子量
- 162.5 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
- +1412°C
- Boiling Point沸点
- +2567°C
- Density密度
- 8.55 g/cm³
- Crystal Structure晶体结构
- Hexagonal Close-Packed (HCP)六方密堆积
- Atomic Radius原子半径
- 178 pm
- Ionic Radius离子半径
- 91 pm
- Electronegativity电负性
- 1.22
Electron Configuration电子排布
- Config电子构型
- [Xe] 4f¹⁰ 6s²
- Shells电子层
- 2, 8, 18, 28, 8, 2
- Oxidation States氧化态
- +3
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18861886 年
- Discoverer发现者
- Paul-Emile Lecoq de Boisbaudran
- Country国家
- France法国
Uses & Applications用途
Magnets, nuclear control rods, lasers
磁铁，核控制棒，激光
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 Dysprosium comes from Dy and it was first identified in 1886.
镝的名称来源于其符号Dy，于1886年首次被确认。
Memory Aid记忆口诀
Keeps magnets strong at high temperatures
耐高温磁体材料
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）。