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GCSE CHEMISTRY atomic structure & BONDING. High Demand Questions QUESTIONSHEET 1. (a) Oxygen and sulphur are in the same group of the periodic table . Complete the table below to show the arrangement of electrons in oxygen and sulphur atoms. Atom shell 1 shell 2 shell 3. oxygen sulphur [2]. om (b) (i) Draw a diagram of an oxygen atom. [2]. ctiv (ii) Use your diagram to describe two ways in which oxygen can achieve a full outside shell of electrons.. ma .. [2]. he (c) Some of the oxygen in the atmosphere is in the form of ozone, O3. Scientists believe that chlorine radicals are destroying ozone. (i) What is the difference between a chlorine radical and a chlorine molecule? .. [2]. ww (ii) What substances are thought to be main sources of chlorine radicals in the atmosphere? .. [1]. TOTAL / 9. GCSE CHEMISTRY atomic structure & BONDING. High Demand Questions QUESTIONSHEET 2. (a) There are eleven electrons in a sodium atom. The amounts of energy required to remove each one have been measured and the results shown on a sketch graph.
www.chemactive.com GCSE CHEMISTRY ATOMIC STRUCTURE & BONDING High Demand Questions QUESTIONSHEET 1 (a) Oxygen and sulphur are in the same group of the periodic table. Complete the table below to show the arrangement of electrons in oxygen and sulphur atoms.
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