Rhenium is a Transition Metals element with the symbol Re and atomic number 75. Located in period 6, group 7 (d-block), it has an atomic weight of 186.21 u and is classified as a solid at standard temperature and pressure. First identified in 1925 by Walter Noddack in Germany. Rhenium has an electron configuration of [Xe] 4f¹⁴ 5d⁵ 6s² with 6 electron shells containing 2, 8, 18, 32, 13, 2 electrons respectively. It is commonly used in: jet engine superalloys, catalysts, thermocouples.

铼是一种过渡金属元素,符号为Re,原子序数为75。位于第6周期,第7族(d区),原子量为186.21 u,在标准温度和压力下为固体。于1925 年首次被确认,由Walter Noddack发现。铼的电子排布为[Xe] 4f¹⁴ 5d⁵ 6s²,具有6个电子层,分别含有2、8、18、32、13、2个电子。常见用途包括:喷气发动机高温合金,催化剂,热电偶。

Basic Properties基本属性

Atomic Number原子序数
75
Atomic Weight原子量
186.21 u
Category分类
Transition Metals过渡金属
State at STP标准状态
Solid固体
Period周期
6
Group
7
Block
d-blockd区

Physical Properties物理性质

Melting Point熔点
+3186°C
Boiling Point沸点
+5596°C
Density密度
21.02 g/cm³
Crystal Structure晶体结构
Hexagonal Close-Packed (HCP)六方密堆积
Atomic Radius原子半径
188 pm
Ionic Radius离子半径
63 pm
Electronegativity电负性
1.9

Electron Configuration电子排布

Config电子构型
[Xe] 4f¹⁴ 5d⁵ 6s²
Shells电子层
2, 8, 18, 32, 13, 2
Oxidation States氧化态
+4, +6, +7

Electron Shells电子层结构

2e⁻
8e⁻
18e⁻
32e⁻
13e⁻
2e⁻

Discovery发现历史

Year年份
19251925 年
Discoverer发现者
Walter Noddack
Country国家
Germany德国

Uses & Applications用途

Jet engine superalloys, catalysts, thermocouples

喷气发动机高温合金,催化剂,热电偶

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 Rhenium comes from Re and it was first identified in 1925.

铼的名称来源于其符号Re,于1925年首次被确认。

Memory Aid记忆口诀

Rare metal for jet engines

喷气发动机关键金属

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)。

Related Elements (Same Group 7)相关元素(同第7族)

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