M1:U2.L2

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Across
  1. 5. Recall that there are more than 100 elements, each with a unique set of physical and chemical _____
  2. 8. The melting point of carbon is higher than the melting point of _____.
  3. 9. Mendeleev predicted that scientists would _________elements that would fit into the spaces in the periodic table
  4. 10. _______ was the man who arranged the elements in rows of increasing atomic mass.
  5. 12. There are ____ in the physical properties of a group such as density, melting point, and boiling point.
  6. 14. Boiling point and ______ also follow a periodic pattern
  7. 16. _____ can use the periodic table to predict the properties of new elements they create.
Down
  1. 1. In group 15 of the periodic table ______ is a recently discovered element.
  2. 2. ___ is a column on the periodic table
  3. 3. ______ are also considered periodic because they are a repeating pattern
  4. 4. In period 3 of the periodic table _____ is a metalloid
  5. 6. the periodic table is a unique chart of the ______ arranged into rows and columns according to their physical and chemical properties
  6. 7. The rows in the periodic table are called _____
  7. 11. _____ are located on the right side of the periodic table
  8. 13. Mendeleev believed that the atomic masses of certain elements must be ______ because the elements appeared in the wrong place on the periodic table.
  9. 15. _____ found that if elements were listed according to increasing atomic number instead of increasing atomic mass, columns would contain elements with similar properties.