History of The periodic Table

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Across
  1. 2. The thing that Mendeleev used to organize elements in his periodic table
  2. 6. A law stating that the elements, when listed in order of their atomic numbers, fall into recurring groups, so that elements with similar properties occur at regular intervals.
Down
  1. 1. John Newland's law of
  2. 3. The thing Moseley used to organize elements in his periodic table
  3. 4. The element where the law of octaves breaks down
  4. 5. An element that could not be correctly placed in Mendeleev's periodic table