The first list below contains words or phrases, each of which has a ‘partner’ in the second list, e.g. ‘sodium’ in the first list can be matched with ‘metal’ in the second list. Match the ‘partners’; there is only one match for each pair of words or phrases.

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List 1 Sodium Cadmium iodide Octahedral site Gallium-doped silicon Sodium sulfide Perovskite Calcium fluoride Gallium arsenide Wurtzite and zinc blende Tin(IV) oxide List 2 Antifluorite structure Extrinsic semiconductor Double oxide Polymorphs Fluorite structure Metal Intrinsic semiconductor Layered structure 6-Coordinate Cassiterite