DEVELOPMENT OF THE PERIODIC TABLE OF ELEMENTS

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Across
  1. 2. The new name of eka-aluminum which is the element predicted by Mendeleev
  2. 7. periodic System, Name of Mendeleev’s periodic table.
  3. 9. Number, Basis in the arrangement of the modern periodic table
  4. 10. Elements are arranged periodically and if they are in the same group, they share similar _____.
  5. 11. of triads, Law which states that “the group of three are chemically similar elements because of their average atomic weight”
  6. 13. One of the first elements known to humans during the very early times.
  7. 14. Newlands, The man behind the law of octaves
Down
  1. 1. Mendeleev, Known to be the father of the periodic table
  2. 3. Weight, The basis of the arrangement of the elements until the time of Mendeleev.
  3. 4. Moseley, An English physicist whose observation of elements led to the development of Modern Periodic Law.
  4. 5. In today's periodic table, elements in an interval of eight (8) belong to the same group or ____.
  5. 6. The number of elements in the modern periodic table
  6. 8. of Octaves, “Every 8th element has similar properties” Which law was established by this idea?
  7. 11. Meyer, German chemist who was one of the pioneers in developing the earlier versions of the periodic table of chemical elements.
  8. 12. Dobereiner, Chemist who formed the law of triads