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  2. Basic lead phosphite - Wikipedia

    en.wikipedia.org/wiki/Basic_lead_phosphite

    Basic lead phosphite is an inorganic compound with the proposed composition Pb 3 O(OH) 2 (HPO 3). [1] The compound contains the phosphite anion, which provides the reducing properties associated with the application of this material.

  3. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    Chemical formula Synonyms CAS number CAgO carbonylsilver: CCl 2 F 2: dichlorodifluoromethane freon-12: 75-71-8 CCl 4: carbon tetrachloride tetrachloromethane: 56-23-5 C(CN) 4: tetracyanomethane: 24331-09-7 CFCl 3: trichlorofluoromethane freon-11: 75-69-4 CFCl 2 CF 2 Cl: chlorotrifluoromethane freon-13: 75-72-9 CHCl 3: chloroform ...

  4. Isotopes of uranium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_uranium

    Uranium (92 U) is a naturally occurring radioactive element (radioelement) with no stable isotopes.It has two primordial isotopes, uranium-238 and uranium-235, that have long half-lives and are found in appreciable quantity in Earth's crust.

  5. Isotopes of protactinium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_protactinium

    231 Pa makes up nearly all natural protactinium. The primary decay mode for isotopes of Pa lighter than (and including) the most stable isotope 231 Pa is alpha decay, except for 228 Pa to 230 Pa, which primarily decay by electron capture to isotopes of thorium. The primary mode for the heavier isotopes is beta minus (β −) decay.

  6. Chemical formula - Wikipedia

    en.wikipedia.org/wiki/Chemical_formula

    A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.

  7. Protactinium - Wikipedia

    en.wikipedia.org/wiki/Protactinium

    Protactinium-231 arises naturally from the decay of natural uranium-235, and artificially in nuclear reactors by the reaction 232 Th + n → 231 Th + 2n and the subsequent beta decay of 231 Th. It was once thought to be able to support a nuclear chain reaction, which could in principle be used to build nuclear weapons ; the physicist Walter ...

  8. U-231 - Wikipedia

    en.wikipedia.org/wiki/U-231

    U-231 may refer to: Uranium-231 (U-231 or 231 U), an isotope of uranium; German submarine U-231 of World War II; U 231, one of the Gällsta Runestones in Sweden

  9. Chemical nomenclature - Wikipedia

    en.wikipedia.org/wiki/Chemical_nomenclature

    The main purpose of chemical nomenclature is to disambiguate the spoken or written names of chemical compounds: each name should refer to one compound. Secondarily, each compound should have only one name, although in some cases some alternative names are accepted. Preferably, the name should also represent the structure or chemistry of a compound.