PERIODIC CLASSIFICATION OF ELEMENTS

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Across
  1. 1. Number of elements that were classified by newland
  2. 4. Element with six electrons in it's M shell.
  3. 6. Doberneer Made group of three elements showing similar properties and called them ______.
  4. 8. Upto which element, the Law of Octaves was found applicable?
  5. 9. The elements present in 17th group of modern periodic table
  6. 10. the element whose position posed a problem in Mendeleev's periodic table
Down
  1. 2. Gasses placed in the last (Group 18th)of the modern periodic table
  2. 3. Name the element present in 3rd period 16th group of periodic table
  3. 5. Name the element which was called aka aluminum by Mendeleev
  4. 7. The combining capacity of an element.