Periodic table

123456789101112
Across
  1. 2. chemical element with the symbol H and atomic number 1
  2. 5. a lightweight silvery white metal of main Group 13 (IIIa, or boron group) of the periodic table
  3. 7. The metal itself which is soft, white
  4. 8. Group 11, Atomic Number 79, d-block,
  5. 9. chemical element with the symbol C
  6. 11. a trace element that is naturally present in some foods
  7. 12. used in steels to increase hardness and strength and in lamp filaments
Down
  1. 1. chemical element, ferromagnetic metal of Group 9 (VIIIb) of the periodic table
  2. 3. a chemical element with the symbol F
  3. 4. a naturally-occurring radioactive gas that can cause lung cancer
  4. 6. the most abundant mineral in the body
  5. 10. essential for cell growth and division, immune function