Pd
Palladium is a Transition Metals element with the symbol Pd and atomic number 46. Located in period 5, group 10 (d-block), it has an atomic weight of 106.42 u and is classified as a solid at standard temperature and pressure. First identified in 1803 by William Hyde Wollaston in England. Palladium has an electron configuration of [Kr] 4d¹⁰ with 4 electron shells containing 2, 8, 18, 18 electrons respectively. It is commonly used in: catalytic converters, hydrogen storage, jewelry.
钯是一种过渡金属元素,符号为Pd,原子序数为46。位于第5周期,第10族(d区),原子量为106.42 u,在标准温度和压力下为固体。于1803 年首次被确认,由William Hyde Wollaston发现。钯的电子排布为[Kr] 4d¹⁰,具有4个电子层,分别含有2、8、18、18个电子。常见用途包括:催化转换器,储氢,珠宝。
Basic Properties基本属性
- Atomic Number原子序数
- 46
- Atomic Weight原子量
- 106.42 u
- Category分类
- Transition Metals过渡金属
- State at STP标准状态
- Solid固体
- Period周期
- 5
- Group族
- 10
- Block区
- d-blockd区
Physical Properties物理性质
- Melting Point熔点
- +1554.9°C
- Boiling Point沸点
- +2963°C
- Density密度
- 12.02 g/cm³
- Crystal Structure晶体结构
- Face-Centered Cubic (FCC)面心立方
- Atomic Radius原子半径
- 169 pm
- Ionic Radius离子半径
- 64 pm
- Electronegativity电负性
- 2.2
Electron Configuration电子排布
- Config电子构型
- [Kr] 4d¹⁰
- Shells电子层
- 2, 8, 18, 18
- Oxidation States氧化态
- +2, +4
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 18031803 年
- Discoverer发现者
- William Hyde Wollaston
- Country国家
- England英国
Uses & Applications用途
Catalytic converters, hydrogen storage, jewelry
催化转换器,储氢,珠宝
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 Palladium comes from Pd and it was first identified in 1803.
钯的名称来源于其符号Pd,于1803年首次被确认。
Memory Aid记忆口诀
Absorbs hydrogen like a sponge
能吸收大量氢气
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)。