periodic table

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Across
  1. 2. Soft malleable and ductile metal with very high thermal and electrical conductivity
  2. 4. Animals and plants require it
  3. 5. A mixture of (MgO) and (HgO)
  4. 7. The most common element on Earth
  5. 9. Is used to treat bipolar disorder and treat major depressive disorder
  6. 10. is combined with other elements such as copper, zinc, silicon, and magnesium
Down
  1. 1. The lightest element in the periodic table
  2. 3. a silvery-white metal that is soft enough to be cut with a knife
  3. 6. a soft, silvery-white, highly reactive metal
  4. 8. it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity