Lead (/ lɛd /) is a chemical element; it has symbol Pb (from Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air.

2025年2月5日 · Lead has an atomic number of 82 and is a grey metal. It has a melting point of 327.46 °C (621.43 °F) and a boiling point of 1749 °C (3180 °F). Pb has a solid phase density of 11.34 g/cm 3 and a liquid or molten phase density of 10.66 g/cm 3 .

2025年2月14日 · lead (Pb), a soft, silvery white or grayish metal in Group 14 (IVa) of the periodic table. Lead is very malleable , ductile, and dense and is a poor conductor of electricity. Known in antiquity and believed by the alchemists to be the oldest of metals, lead is highly durable and resistant to corrosion , as is indicated by the continuing use of ...

铅是一种金属化学元素，元素符号Pb，原子序数为82，原子量为207.2，是原子量最大的非放射性元素。 金属铅为面心立方晶体。 金属铅是一种耐蚀的重有色金属材料，铅具有熔点低、耐蚀性高、X射线和γ射线等不易穿透、塑性好等优点，常被加工成板材和管材 ...

Lead is a chemical element with symbol Pb and atomic number 82. Classified as a post-transition metal, Lead is a solid at room temperature.

Lead is a chemical element of the periodic table with chemical symbol Pb and atomic number 82 with an atomic weight of 207.21 u and is classed as post-transition metal and is part of group 14 (carbon group). Lead is solid at room temperature.

Very soft, highly malleable and ductile, blue-white shiny metal. Found most often in ores called galena or lead sulfide (PbS). Some is found in its native state. Used in solder, shielding against radiation and in batteries. Get the facts about element Lead (Pb) [82] from the periodic table.

Lead is a very corrosion-resistant, dense, ductile, and malleable blue-gray metal that has been used for at least 5,000 years. Early uses of lead included building materials, pigments for glazing ceramics, and pipes for transporting water .

Lead is the 82nd element in the periodic table and has a symbol of Pb and atomic number of 82. It has an atomic weight of 207.2 and a mass number of 208. Lead has eighty-two protons and one hundred twenty-six neutrons in its nucleus, and eighty-two electrons in six shells.

中文名称：铅，英文名称：Lead，元素符号Pb，原子序数82，相对原子质量207.2，是IVA族金属。 密度11.3437g/cm³，熔点327.502℃，沸点1740℃，铅是一种略带蓝色的银白色金属，但是在空气中很容易被空气中的氧气氧化，形成灰黑色的氧化铅，所以我们看到的铅常是 ...