Periodic Table

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Across
  1. 3. Horizontal Row of the periodic Table
  2. 4. Creator of Periodic Table
  3. 7. Mutual repulsion of electrons for each other
Down
  1. 1. Vertical Row of the Periodic Table
  2. 2. Minimum amount of energy required to remove an electron from a gaseous atom in its ground state
  3. 5. Relative ability of an atom to attract the bonding electrons to itself when combined with another atom by a chemical bond
  4. 6. Distance between the centers of two atoms