(a) describe the Periodic Table as an arrangement of the elements in the order of increasing proton<br />(atomic) number<br />(b) *describe how the position of an element in the Periodic Table is related to proton number and<br />electronic structure<br />(c) *describe the relationship between group number and the ionic charge of an element<br />(d) explain the similarities between the elements in the same group of the Periodic Table in terms of<br />their electronic confi guration<br />(e) describe the change from metallic to non-metallic character from left to right across a period of the<br />Periodic Table<br />(f) *describe the relationship between group number, number of valency electrons and metallic/<br />non-metallic character<br />(g) *predict the properties of elements in Group I, VII and the transition elements using the Periodic<br />Table<br />(a) describe lithium, sodium and potassium in Group I (the alkali metals) as a collection of relatively soft,<br />low-density metals showing a trend in melting point and in their reaction with water<br />(b) describe chlorine, bromine and iodine in Group VII (the halogens) as a collection of diatomic<br />non-metals showing a trend in colour, state and their displacement reactions with solutions of other<br />halide ions<br />(c) describe the elements in Group VIII (the noble gases, also known as Group 0) as a collection of<br />monatomic elements that are chemically unreactive and hence important in providing an inert<br />atmosphere, e.g. argon and neon in light bulbs; helium in balloons; argon in the manufacture of steel<br />(d) describe the lack of reactivity of the noble gases in terms of their electronic structures<br />(a) describe the central block of elements (transition metals) as metals having high melting points, high<br />density, variable oxidation state and forming coloured compounds<br />(b) state the use of these elements and/or their compounds as catalysts, e.g. iron in the Haber process;<br />vanadium(V) oxide in the contact process; nickel in the hydrogenation of alkenes, and how catalysts<br />are used in industry to
