Na,e 20 elements and compounds
Solution:
I think you want to ask the names of 20 elements and compounds.
I think you want to ask the names of 20 elements and compounds.
| Serial No. | Name of element | Name of compound |
| 1 | Hydrogen (H) | water (H2O) |
| 2 | Helium(He) | No compound |
| 3 | Lithium (Li) | Lithium oxide (Li2O) |
| 4 | Beryllium (Be) | Beryllium oxide(BeO) |
| 5 | Boron(B) | Boric acid (H3BO3) |
| 6 | Carbon(C) | Carbon dioxide (CO2) |
| 7 | Nitrogen(N) | Ammonia(NH3) |
| 8 | Oxygen(O) | Water(H2O) |
| 9 | Fluorine(F) | Hydrogen Fluoride(HF) |
| 10 | Neon(Ne) | No compound |
| 11 | Sodium(Na) | Sodium oxide(Na2O) |
| 12 | Magnesium(Mg) | Magnesium oxide (MgO) |
| 13 | Aluminium(Al) | Aluminium trioxide (Al2O3) |
| 14 | Silicon(Si) | Silicon dioxide(SiO2) |
| 15 | Phosphorous(P) | Phosphine(PH3) |
| 16 | Sulphur(S) | Sulphur dioxide (SO2) |
| 17 | Chlorine(Cl) | Hydrochloric acid(HCl) |
| 18 | Argon(Ar) | Sulphur trioxide argon (SO3Ar) |
| 19 | Potassium(K) | Potassium oxide(K2O) |
| 20 | Calcium(Ca) | Calcium oxide (CaO) |