Periodic table

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  1. 4. The element with the lowest molecular mass of all
  2. 5. The 7th element of the periodic table
  3. 6. When exposed to high heat it emits a yellow smoke
Down
  1. 1. consists 20.95% of the atmosphere
  2. 2. When exposed to extreme heat and pressure it forms diamonds
  3. 3. Emits sparkles when in contact with a flame