the periodic timetable 0.0 / 5 ? ChemistryNanoscienceGCSENone Created by: lucya2711Created on: 15-11-19 14:56 the elements are arranged in order of increasing atomic number 1 of 6 the horizontal rows are called periods 2 of 6 the vertical columns are called groups 3 of 6 Iron, magnesium and gold are examples of metal elements 4 of 6 The reaction can be represented by this word equation: magnesium + oxygen → magnesium oxide 5 of 6 Metal oxides are bases 6 of 6
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