Gd
Gadolinium is a Lanthanides element with the symbol Gd and atomic number 64. Located in period 6 (f-block), it has an atomic weight of 157.25 u and is classified as a solid at standard temperature and pressure. First identified in 1880 by Jean Charles Galissard de Marignac in Switzerland. Gadolinium has an electron configuration of [Xe] 4f⁷ 5d¹ 6s² with 6 electron shells containing 2, 8, 18, 25, 9, 2 electrons respectively. It is commonly used in: mri contrast agents, nuclear reactors, green phosphors.
钆是一种镧系元素元素，符号为Gd，原子序数为64。位于第6周期（f区），原子量为157.25 u，在标准温度和压力下为固体。于1880 年首次被确认，由Jean Charles Galissard de Marignac发现。钆的电子排布为[Xe] 4f⁷ 5d¹ 6s²，具有6个电子层，分别含有2、8、18、25、9、2个电子。常见用途包括：MRI造影剂，核反应堆，绿色荧光粉。
Basic Properties基本属性
- Atomic Number原子序数
- 64
- Atomic Weight原子量
- 157.25 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
- +1313°C
- Boiling Point沸点
- +3273°C
- Density密度
- 7.89 g/cm³
- Crystal Structure晶体结构
- Hexagonal Close-Packed (HCP)六方密堆积
- Atomic Radius原子半径
- 180 pm
- Ionic Radius离子半径
- 94 pm
- Electronegativity电负性
- 1.2
Electron Configuration电子排布
- Config电子构型
- [Xe] 4f⁷ 5d¹ 6s²
- Shells电子层
- 2, 8, 18, 25, 9, 2
- Oxidation States氧化态
- +3
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18801880 年
- Discoverer发现者
- Jean Charles Galissard de Marignac
- Country国家
- Switzerland瑞士
Uses & Applications用途
MRI contrast agents, nuclear reactors, green phosphors
MRI造影剂，核反应堆，绿色荧光粉
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 Gadolinium comes from Gd and it was first identified in 1880.
钆的名称来源于其符号Gd，于1880年首次被确认。
Memory Aid记忆口诀
MRI scans use gadolinium
核磁共振造影剂
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）。