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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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chemactive.comwww.chemactive.com GCSE CHEMISTRY RATES OF REACTION High Demand Questions QUESTIONSHEET 2 Some chemical reactions may take place twice as quickly if their temperature is raised by 10oC.
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chemactive.comwww.chemactive.com GCSE CHEMISTRY METALS & THE REACTIVITY SERIES ANSWERS AND MARK SCHEMES QUESTIONSHEET 10 (a) one per connection 3 (b) (i) potassium 1 (ii) magnesium/ iron 1
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