Periodic Table

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Across
  1. 2. element has an atomic mass of 55
  2. 4. the chief one of this element is bauxite Helium- this element has the lowest boiling point Magnesium- has the element symbol "Mg"
  3. 6. the lightest element on the periodic table Tin- element has a density of 7.1
  4. 10. element has the symbol of "Ag"
  5. 11. element has the symbol of "Fe"
  6. 12. the element has an atomic mass of 32.-6 Potassium- the element has a melting point of 336.7 k Fluorine- the element has an atomic number of 9 Silicon- the element symbol is "Si"
  7. 13. has the atomic number 5
Down
  1. 1. the element discovered in the year 1669
  2. 2. the element is the second lightest halogen after fluorine
  3. 3. the element was discovered by Johan August Arfwedson
  4. 5. has an atomic mass of 20.2
  5. 7. gas element: breathed by all mammals
  6. 8. a mineral good for bones and keeping them healthy
  7. 9. can be found in a wooden pencil