What is Pb? Important knowledge about Pb.

  1. Definition of Pb
    Pb is the chemical symbol for Lead, a heavy metal belonging to group IVA in the periodic table, with an atomic number of 82. Pb comes from the Latin word “Plumbum,” and its English name is Lead. The atomic mass of Pb is 207.2 and it has an atomic number of 82. Lead is a chemical element with a simple molecular structure, typically existing as an element or compound. Lead usually forms Pb2+ ions in compounds.

  2. Properties of Pb
    Lead has many distinctive properties. Physically, under standard conditions, lead is in a solid state, with a lead-gray color, no scent, and no clear pH value. Chemically, lead does not react or reacts very slowly with air, is insoluble in water, and can combine with many other elements to form compounds.

  3. Common chemical equations involving Pb
    Pb often participates in chemical reactions such as reactions with metals, acids, nonmetals, and salts. For example, Pb can react with HCl to produce PbCl2 and H2; or react with O2 to form PbO.

  4. Preparation of Pb
    4.1 Laboratory preparation of Pb is usually carried out through the reaction of PbO with carbon to produce Pb and CO2.
    4.2 On an industrial scale, Pb is typically produced from galena ore (PbS) through a process that includes several steps such as thermal decomposition, flash smelting, and flotation.

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