Tantalum is a Transition Metals element with the symbol Ta and atomic number 73. Located in period 6, group 5 (d-block), it has an atomic weight of 180.95 u and is classified as a solid at standard temperature and pressure. First identified in 1802 by Anders Gustav Ekeberg in Sweden. Tantalum has an electron configuration of [Xe] 4f¹⁴ 5d³ 6s² with 6 electron shells containing 2, 8, 18, 32, 11, 2 electrons respectively. It is commonly used in: capacitors in phones, surgical implants, alloys.

钽是一种过渡金属元素,符号为Ta,原子序数为73。位于第6周期,第5族(d区),原子量为180.95 u,在标准温度和压力下为固体。于1802 年首次被确认,由Anders Gustav Ekeberg发现。钽的电子排布为[Xe] 4f¹⁴ 5d³ 6s²,具有6个电子层,分别含有2、8、18、32、11、2个电子。常见用途包括:手机电容,外科植入物,合金。

Basic Properties基本属性

Atomic Number原子序数
73
Atomic Weight原子量
180.95 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
5
Block
d-blockd区

Physical Properties物理性质

Melting Point熔点
+3017°C
Boiling Point沸点
+5458°C
Density密度
16.65 g/cm³
Crystal Structure晶体结构
Body-Centered Cubic (BCC)体心立方
Atomic Radius原子半径
200 pm
Ionic Radius离子半径
64 pm
Electronegativity电负性
1.5

Electron Configuration电子排布

Config电子构型
[Xe] 4f¹⁴ 5d³ 6s²
Shells电子层
2, 8, 18, 32, 11, 2
Oxidation States氧化态
+5

Electron Shells电子层结构

2e⁻
8e⁻
18e⁻
32e⁻
11e⁻
2e⁻

Discovery发现历史

Year年份
18021802 年
Discoverer发现者
Anders Gustav Ekeberg
Country国家
Sweden瑞典

Uses & Applications用途

Capacitors in phones, surgical implants, alloys

手机电容,外科植入物,合金

Common Compounds常见化合物

Room Temperature常温特性

blue-gray

蓝灰色

Did You Know? 你知道吗?

The name Tantalum comes from Ta and it was first identified in 1802.

钽的名称来源于其符号Ta,于1802年首次被确认。

Memory Aid记忆口诀

In every smartphone capacitor

手机电容的核心

Appearance外观

blue-gray

蓝灰色

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 5)相关元素(同第5族)

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