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CBSE Class 9 Answered

write the first 20 with its symbol and the chemical names ?
Asked by | 27 Oct, 2012, 12:15: PM
answered-by-expert Expert Answer
  1. Hydrogen (H)
  2. Helium (He) 
  3. Lithium (Li)
  4. Beryllium (Be)
  5. Boron (B)
  6. Carbon (C)
  7. Nitrogen (N)
  8. Oxygen (O)
  9. Fluorine (F)
  10. Neon (Ne)
  11. Sodium (Na)
  12. Magnesium (Mg)
  13. Aluminium (Al)
  14. Silicon (Si)
  15. Phosphorous (P)
  16. Sulphur (S)
  17. Chlorine (Cl)
  18. Argon (Ar)
  19. Potassium (K)
  20. Calcium (Ca)
Answered by | 27 Oct, 2012, 10:24: PM
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