Mr williams - sciecne key terms 0.0 / 5 ? Economicsipfrfo76rokNational 5WJEC Created by: AnjelalaCreated on: 13-11-14 10:08 Peridodicity ? Repeating pattern seen in periodic table of the elements. 1 of 10 Relative atomic mass? Ratio of average mass per atom of an element to 1/12th of mass of a carbon 12 atom. 2 of 10 Mass number? Number of protons plus the number of neutrons in the nucleus of an atom. 3 of 10 Ionic bonding? Bonds formed by transfer of electrons. 4 of 10 Covalent bonding? Bonds formed by the sharing of electrons. 5 of 10 Relative molecular mass? Ratio of average mass per molecule of an element or compund too 1/12th of the mass of a carbon-12 atom. 6 of 10 Mole? Unit of substance equivalent to the number of atoms in 0.012kg of carbon 12. 7 of 10 Molar mass? Mass of one mole of a substance. 8 of 10 Standard solution ? Solution of known concentration used in volumetric analysis. 9 of 10 Titration? Method of volumetric analysis used to calculate the concentration of a solution. 10 of 10
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