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Place each element in its group

Exercise and reference answers

Left
Group 1
Items
  1. Region
    Group 1
    Item
    Sodium
  2. Region
    Group 17
    Item
    Fluorine
  3. Region
    Group 17
    Item
    Chlorine
  4. Region
    Group 17
    Item
    Iodine
  5. Region
    both
    Item
    Hydrogen
Right
Group 17
Instructions
Drag each element into group 1, into group 17, or into the middle patch if it fits both.

Explanation

_Source: RRB Group D CEN-02/2018 PYQ, Q.15._
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