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 2 3 Name given to elements in group 7 4 5 6 Elements in this group are stored under oil as they are very reactive with air and water. 7 Elements in this group are very unreactive 8 9 10 Number of protons = 11 Number of neutrons = 12 Number of electrons = 10 Number of protons = 12 Number of neutrons = 12 Number of electrons = 12 Alkali metals Noble gases Number of protons = 16 Number of neutrons = 16 Number of electrons = 18 Number of protons = 4 Number of neutrons = 5 Number of electrons = 2 Halogens
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