An element x(atomic no 17)reacts with an element y (atomic no 20)to form a divalent halide
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a) X belongs to Group 17 and 3rd periodY belongs to Group 2 and 4th periodb) X-Non-metal and Y metalc) Basic oxide; Ionic bonding
a) X belongs to Group 17 and 3rd period\xa0Y belongs to Group 2 and 4th periodb) X-Non-metal and Y metalc) Basic oxide; Ionic bonding
 X belongs to Group 17 and 3rd period Y belongs to Group 2 and 4th period X-Non-metal and Y metal Basic oxide; Ionic bonding