Periodic Table

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Across
  1. 4. The first group is known as the __________ metals
  2. 6. Dmitri Mendelev organised his table into ______ and columns
  3. 7. Each row on the periodic table is called a _______
  4. 9. The element with atomic number 92
  5. 10. Each column on the periodic table is called a __________
  6. 11. Each period corresponds to the number of electron _______ the element has
Down
  1. 1. Elements on the left hand side of the table are _________
  2. 2. The last group on the periodic table is the ________ or inert gases
  3. 3. This element has an atomic weight of one
  4. 5. The atomic number is equal to the number of ________ in the nucleus
  5. 8. The outer electron shells of the inert gases are ________
  6. 9. The groups reflect the number of electrons in the _______ or outer electron shell
  7. 12. Dmitri Mendelev left ________ for as yet undiscovered elements