Mo
Molybdenum is a Transition Metals element with the symbol Mo and atomic number 42. Located in period 5, group 6 (d-block), it has an atomic weight of 95.95 u and is classified as a solid at standard temperature and pressure. First identified in 1781 by Carl Wilhelm Scheele in Sweden. Molybdenum has an electron configuration of [Kr] 4d⁵ 5s¹ with 5 electron shells containing 2, 8, 18, 13, 1 electrons respectively. It is commonly used in: steel alloy, lubricants, catalysts, plant nutrient.
钼是一种过渡金属元素,符号为Mo,原子序数为42。位于第5周期,第6族(d区),原子量为95.95 u,在标准温度和压力下为固体。于1781 年首次被确认,由Carl Wilhelm Scheele发现。钼的电子排布为[Kr] 4d⁵ 5s¹,具有5个电子层,分别含有2、8、18、13、1个电子。常见用途包括:钢合金,润滑剂,催化剂,植物营养素。
Basic Properties基本属性
- Atomic Number原子序数
- 42
- Atomic Weight原子量
- 95.95 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
- 6
- Block区
- d-blockd区
Physical Properties物理性质
- Melting Point熔点
- +2623°C
- Boiling Point沸点
- +4639°C
- Density密度
- 10.22 g/cm³
- Crystal Structure晶体结构
- Body-Centered Cubic (BCC)体心立方
- Atomic Radius原子半径
- 190 pm
- Ionic Radius离子半径
- 59 pm
- Electronegativity电负性
- 2.16
Electron Configuration电子排布
- Config电子构型
- [Kr] 4d⁵ 5s¹
- Shells电子层
- 2, 8, 18, 13, 1
- Oxidation States氧化态
- +2, +3, +4, +5, +6
Electron Shells电子层结构
Discovery发现历史
- Year年份
- 17811781 年
- Discoverer发现者
- Carl Wilhelm Scheele
- Country国家
- Sweden瑞典
Uses & Applications用途
Steel alloy, lubricants, catalysts, plant nutrient
钢合金,润滑剂,催化剂,植物营养素
Common Compounds常见化合物
—
—
Room Temperature常温特性
gray metallic
灰色金属光泽
Did You Know? 你知道吗?
The name Molybdenum comes from Mo and it was first identified in 1781.
钼的名称来源于其符号Mo,于1781年首次被确认。
Memory Aid记忆口诀
Makes steel tougher
钢铁强韧剂
Appearance外观
gray metallic
灰色金属光泽
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)。