Αποτελέσματα Αναζήτησης
Lead (pronounced "led") 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.
24 Σεπ 2024 · 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.
Element Lead (Pb), Group 14, Atomic Number 82, p-block, Mass 207.2. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Lead is a chemical element with the symbol Pb and atomic number 82. It is a heavy, soft, gray metal that is easily malleable and has a high density. Lead has been used for thousands of years and was one of the first metals worked by humans.
9 Δεκ 2012 · 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. Properties of Lead. Uses of lead in the modern world.
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.
16 Απρ 2022 · Key facts about lead include its symbol Pb and atomic number 82. Lead is a useful element that is also a toxic heavy metal. In everyday life, it occurs in batteries, solder, stoneware, vinyl, and old paint.