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英文字典中文字典相关资料:


  • Lead - Wikipedia
    Lead has the highest atomic number of any stable element, and three of its isotopes are endpoints of major nuclear decay chains of heavier elements Lead is a relatively unreactive post-transition metal
  • Lead | Definition, Uses, Properties, Facts | Britannica
    Lead, 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
  • Lead (Pb) - Periodic Table
    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
  • Lead - Element information, properties and uses | Periodic Table
    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 (Pb) - Periodic Table
    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 - Periodic Table
    Lead - Periodic Table Lead is a 82 chemical element in the periodic table of elements It has 82 protons and 82 electrons in the atomic structure The chemical symbol for Lead is Pb
  • Lead | Pb (Element) - PubChem
    Chemical element, Lead, information from authoritative sources Look up properties, history, uses, and more
  • Periodic Table of Elements: Los Alamos National Laboratory
    Lead is obtained chiefly from galena (PbS) by a roasting process Anglesite, cerussite, and minim are other common lead minerals Lead is a bluish-white metal of bright luster It is very soft, highly malleable, ductile, and a poor conductor of electricity
  • WebElements Periodic Table » Lead » the essentials
    This WebElements periodic table page contains the essentials for the element lead
  • Lead (Pb) | Periodic Table Space
    Detailed properties, trends, and chemistry facts about Lead (Pb), atomic number 82





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