Periodic Table

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Across
  1. 3. this element is in pencils
  2. 4. this element was discovered in the year of 1669
  3. 7. the mass of one atom of an element
  4. 9. element has a atomic number of 9
  5. 10. what element has the symbol of "Fe"
Down
  1. 1. element is good for your bones
  2. 2. a chart that organizes information about all elements according to their properties
  3. 5. this element is the lightest element on the periodic table
  4. 6. what element has the symbol of "Ag"
  5. 8. element has an atomic mass of 32.06