Relier Pairs Atoms, ions & the Periodic table Revision (D)Version en ligne Match the cards which describe the same atom or ion. Match the cards that describe the same group on the Periodic table. par Kirk Villanueva 1 Elements in this group are very unreactive 2 3 4 5 6 Elements in this group are stored under oil as they are very reactive with air and water. 7 8 Name given to elements in group 7 9 10 Noble gases Number of protons = 11 Number of neutrons = 12 Number of electrons = 10 Number of protons = 4 Number of neutrons = 5 Number of electrons = 2 Halogens Alkali metals Number of protons = 16 Number of neutrons = 16 Number of electrons = 18 Number of protons = 12 Number of neutrons = 12 Number of electrons = 12
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