Masses of atoms and molecules

Descripción

GCSE C2 Mapa Mental sobre Masses of atoms and molecules, creado por danielberthaur el 19/11/2013.
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Mapa Mental por danielberthaur, actualizado hace más de 1 año
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  1. Relative molecular mass
    1. When atoms make molecules the mass of the molecule can be calculated
      1. By adding the relative atomic masses of the atoms that make the molecule up
        1. E.G- PbSO4
          1. P- 207
            1. S-32
              1. O-4
                1. Mr of PbSO4 is 207+32+(4*16)=303
                2. Symbol of Mr
                  1. Usually called relative formula mass when talking in terms of ionic compounds
                  2. Relative atomic mass
                    1. Symbol of Ar
                      1. Mass number (Top Number) is the Mass of the element
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