Periodic table crossword

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Across
  1. 1. used to prevent rust on taps
  2. 4. most common metal used to build bridges and skyscrapers
  3. 5. Very high calorific value also used in oil manufacturing
  4. 7. Has brownish orange fumes that are toxic
  5. 9. important for strong bones
  6. 10. Highest melting point metal
  7. 11. a isotope of this element is used in cancer treatment
  8. 12. Used in catalytic converters and has shot up in value in 2020
Down
  1. 1. is the building block of our universe
  2. 2. Radioactive element discovered by famous female scientist
  3. 3. Used in Race car brakes
  4. 6. Has metal properties but is non metal
  5. 8. GI pipes
  6. 9. Highly reactive with water