The trend in reducing ability of the halide ions, including the reactions of solid sodium halides with concentrated sulfuric acid.The trend in oxidising ability of the halogens down the group, including displacement reactions of halide ions in aqueous solution.The trends in electronegativity and boiling point of the halogens.The relative solubilities of the sulfates of the elements Mg–Ba in water.The relative solubilities of the hydroxides of the elements Mg–Ba in water.The reactions of the elements Mg–Ba with water.The trends in atomic radius, first ionisation energy and melting point of the elements Mg–Ba.Explain the melting point of the elements in terms of their structure and bonding.The trends in atomic radius, first ionisation energy and melting point of the elements Na–Ar.Physical properties of Period 3 elements.Explain how first and successive ionisation energies in Period 3 (Na–Ar) and in Group 2 (Be–Ba) give evidence for electron configuration in sub-shells and in shells.Write equations for first and successive ionisation energies.Ionisation energies, students should be able to: define first ionisation energy.Explanations in terms of atomic radius, screening effect and nuclear charge for general trends in proprties of elements in groups I and VII.Dependence of chemical properties of elements on their electronic structure.(ii) across a period (main group elements) and for exceptions to the general trends across a period.Explanations for general trends in values: (i) down a group (ii) across a period (covalent radii of main group elements only).Explanations for trends in values: (i) down a group RSC Yusuf Hamied Inspirational Science Programme.Introductory maths for higher education.The physics of restoration and conservation.
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