Group 7 Elements 0.0 / 5 ? ChemistryAcids, bases and saltsIGCSEEdexcel Created by: BeckyCreated on: 15-06-14 12:19 What are these elements known as? halogens 1 of 14 In one molecule of a group 7 element how many atoms are there? 2 2 of 14 Which of these elements is radioactive? astatine 3 of 14 At room temperature what state is chlorine in? gas 4 of 14 what colour vapour does Iodine give off? purple 5 of 14 Which of the elements is a dark red liquid at room temperature? bromine 6 of 14 When they react with hydrogen they form hydrogen ...... halides 7 of 14 The intensity of the reaction with hydrogen gets ...... as you go down the group lower 8 of 14 When reacting a group 7 element with Iron how many Iron atoms are need to write a balanced symbol equation? 2 9 of 14 hydrogen chloride ...... in water to form H+ ions dissociates 10 of 14 what type of acid is produced when of hydrogen chloride gas dissociates in water? hydrochloric 11 of 14 The reactivity goes .... as you go down the group down 12 of 14 what colour does the colourless solution of potassium bromide and chlorine go? orange 13 of 14 When reacting potassium bromide and chlorine, the chlorine replaces the bromide in a ...... reaction displacement 14 of 14
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