(e) Chemical formulae, equations and calculations.1:24 understand why the noble gases (Group 0) do not readily react.1:23 Understand why elements in the same group of the Periodic Table have similar chemical properties.1:22 understand how the electronic configuration of a main group element is related to its position in the Periodic Table.1:21 identify an element as a metal or a non-metal according to its position in the Periodic Table.1:20 understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals.1:19 understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table.1:18 understand how elements are arranged in the Periodic Table: in order of atomic number, in groups and periods.1:17 be able to calculate the relative atomic mass of an element (Aᵣ) from isotopic abundances.1:16 know what is meant by the terms atomic number, mass number, isotopes and relative atomic mass (Aᵣ).1:15 know the structure of an atom in terms of the positions, relative masses and relative charges of sub-atomic particles.1:14 know what is meant by the terms atom and molecule.1:13 practical: investigate paper chromatography using inks/food colourings.1:12 understand how to use the calculation of Rf values to identify the components of a mixture.1:11 understand how a chromatogram provides information about the composition of a mixture.1:10 describe these experimental techniques for the separation of mixtures: simple distillation, fractional distillation, filtration, crystallisation, paper chromatography.
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