![]() Whereas, a polyatomic element, has a multiple atom repeating unit (e.g. copper, sodium or helium) repeating unit. A monatomic element has a single atom (e.g. ![]() Matter is made up of repeating units of atoms, molecules or ions.Īn element is a substance that contains only one type of atom as its repeating unit. What are the relationships between atom, element, molecule, ion, compound and mixture? Classification, variation, food webs and pyramids.Combustion reactions and impact on climate.Atoms elements compounds and mixtures (interactive).B1.6 Waste materials from plants and animals.RSC Learn Chemistry Classic Chemistry Experiments.RSC Classic Chemistry Experiments (1995).Practical Chemistry (Nuffield Foundation/RSC).3.15 Nuclear magnetic resonance spectroscopy.3.14 Organic synthesis and analysis (A2).2.6 Reactions of ions in aqueous solution.2.4 Properties of Period 3 elements and their oxides.1.11 Electrode potentials and electrochemical cells (Redox A2).1.10 Equilibrium constant Kc for homogeneous systems (Equilibrium A2).3.6 Organic analysis (AS): analytical techniques.1.7 Oxidation reduction equations (Redox AS).1.6 Chemical equilibria and Le Chatelier’s principle.C3.5 Production of ammonia (an example of a reversible reaction).C3.4 Further analysis and quantitative chemistry.C3.3 Calculating and explaining energy change.C2.5 Exothermic and endothermic reactions.C2.3 Atomic structure, analysis and quantitative chemistry.C1.7 Changes in the Earth and its atmopshere.C1.5 Other useful substances from crude oil.
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