PERIODIC TABLE

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Across
  1. 1. 4f elements are called
  2. 4. The vertical columns in the periodic table are known as
  3. 6. electro negativity is assigned by
  4. 9. 5f elements are called
  5. 12. father of periodic table
  6. 13. one of the example of metalliods
  7. 14. law of triads was proposed by
  8. 15. one of the alkali earth metal family
Down
  1. 2. d block elements are also called
  2. 3. law of octaves was proposed by
  3. 5. eka-aluminium
  4. 7. The horizontal rows in the periodic table are called
  5. 8. modern periodic table law was proposed by
  6. 9. one of the noble gas
  7. 10. one of the halogen family
  8. 11. one of the alkali family