chemical patterns 0.0 / 5 ? ChemistryAtomsChemical patterns and reactivity seriesGCSEOCR Created by: beth_heyyCreated on: 26-04-16 19:59 The elements in group 7 halogens 1 of 12 The part of an atom with a +1 charge proton 2 of 12 Group 1 are Alkali Metals 3 of 12 metal + water = metal hydroxide + ? hydrogen 4 of 12 the second shell of an atom can hold up to ___ elctrons eight 5 of 12 electrons in different shells have different ___ energy levels 6 of 12 atoms with up to 3 electrons in their outer shell are ___ metals 7 of 12 Na sodium 8 of 12 the halogens all contain ___ molecules diatomic 9 of 12 negative ions ___ an electron gain 10 of 12 ionic compounds are arranged into a ___ crystal lattice 11 of 12 when a more reactive halogen takes place of a less reactive halogen displacement reaction 12 of 12
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