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8. The Periodic Table

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  1. 8.1 Arrangement of elements

    1. 8.1.1Periodic Table as an arrangement of

      • Describe Periodic Table as an arrangement of elements in periods and groups and in order of increasing proton number/atomic number

    2. 8.1.2Change from metallic to non-metallic

      • Describe change from metallic to non-metallic character across a period

    3. 8.1.3Relationship between group number and

      • Describe relationship between group number and the charge of the ions formed from elements in that group

    4. 8.1.4Similarities in the chemical

      • Explain similarities in the chemical properties of elements in the same group of the Periodic Table in terms of their electronic configuration

    5. 8.1.5How the position of an element in the

      • Explain how the position of an element in the Periodic Table can be used to predict its properties

    6. 8.1.6Trends in groups, given information

      • Identify trends in groups, given information about the elements

  2. 8.2 Group I properties

    1. 8.2.1Group I alkali metals, lithium, sodium

      • Describe Group I alkali metals, lithium, sodium and potassium, as relatively soft metals with general trends down the group, (a) decreasing melting point (b) increasing density (c) increasing reactivity

    2. 8.2.2Predict the properties of other

      • Predict the properties of other elements in Group I, given information about the elements

  3. 8.3 Group VII properties

    1. 8.3.1Group VII halogens, chlorine, bromine

      • Describe Group VII halogens, chlorine, bromine and iodine, as diatomic non-metals with general trends down the group, (a) increasing density (b) decreasing reactivity

    2. 8.3.2Appearance of the halogens at r.t.p

      • State the appearance of the halogens at r.t.p. as: (a) chlorine, a pale yellow-green gas (b) bromine, a red-brown liquid (c) iodine, a grey-black solid

    3. 8.3.3Displacement reactions of halogens

      • Describe/explain the displacement reactions of halogens with other halide ions

    4. 8.3.4Predict the properties of other

      • Predict the properties of other elements in Group VII, given information about the elements

  4. 8.4 Transition elements

    1. 8.4.1Transition elements as metals that

      • Describe transition elements as metals that: (a) have high densities (b) have high melting points (c) form coloured compounds (d) often act as catalysts as elements and in compounds

    2. 8.4.2Transition elements as having ions

      • Describe transition elements as having ions with variable oxidation numbers, including iron(II) and iron(III)

  5. 8.5 Noble gases

    1. 8.5.1

      • Describe Group VIII noble gases as unreactive, monatomic gases and explain this in terms of electronic configuration