Periodic table

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Across
  1. 2. The most electro positive element
  2. 5. most electronegative element
  3. 6. A noble gas used in lights
  4. 8. Group 1
Down
  1. 1. Developer of Modern Periodic table
  2. 3. Father of Periodic table
  3. 4. inert in nature
  4. 7. only liquid non metal