Lead (/ l ɛ d /) 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 ...

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 ...

2025年2月5日 · Lead occurs seldom in nature and may be found in ores, primarily alongside copper, zinc, and silver. The main lead mineral is lead sulfide (galena, PbS). Lead (Pb) Element. Lead compounds are often found in the +2 oxidation state, rather than the +4 state seen in lighter members of the carbon group. Organolead compounds are the only exceptions.

Lead is a naturally occurring bluish-gray metal found in small amounts in the earth's crust. Lead can be found in all parts of our environment. Much of it comes from human activities including burning fossil fuels, mining, and manufacturing. Lead has many different uses.

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.

Lead (pronunciation: LED) is a soft, malleable, and ductile element having a high corrosion resistance, denoted by the chemical symbol Pb. A poor conductor of electricity, it slowly forms a dull coating when exposed to air [1].

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).

2012年12月9日 · Lead’s chemical symbol is Pb, which comes from its Latin name. Our name for the element comes from the Anglo-Saxon word for the metal, ‘lead’. The image below shows shiny, untarnished lead balls.

Lead (Pb) has an atomic mass of 82. Find out about its chemical and physical properties, states, energy, electrons, oxidation and more.

2024年9月1日 · Lead is primarily obtained from its ore lead sulfide (PbS). lead is also obtained from the ores of copper, silver and zinc. Lead is one of the elements that was discovered since ancient times. Lead is a soft metal and it can be cut with a knife also.