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Elements
the first 43
| Term | Definition |
|---|---|
| 1 H | Hydrogen H 1.0079 |
| 2 He | Helium He 4.0026 |
| 3 Li | Lithium LI 22.990 |
| 4 Be | Beryllium Be 9.0122 |
| 5 B | Boron B 10.81 |
| 6 C | Carbon C 12.011 |
| 7 N | Nitrogen N 14.007 |
| 8 O | Oxygen O 15.999 |
| 9 F | Fluorine F 18.998 |
| 10 Ne | Neon Ne 20.180 |
| 11 Na | Sodium Na 22.990 |
| 12 Mg | Magnesium Mg 24.305 |
| 13 Al | Aluminium AL 26.982 |
| 14 Si | Silicon Si 28.085 |
| 15 P | Phosphorus P 30.974 |
| 16 S | Sulfur S 32.06 |
| 17 Cl | Chlorine Cl 35.45 |
| 18 Ar | Argon Ar 39.948 |
| 19 K | K Potassium 39.098 |
| 20 Ca | Calcium Ca 40.078 |
| 21 Sc | Scandium Sc 44.956 |
| 22 Ti | Titanium Ti 47.867 |
| 23 V | Vanadium 50.942 |
| 24 Cr | Chromium 51.996 |
| 25Mn | Manganese |
| 26 Fe | Iron 55.845 |
| 27 Co | Cobalt 58.933 |
| 28 Ni | Nickle 58.993 |
| 29 Cu | copper 63.546 |
| 30 Zn | zinc 65.38 |
| 31 Ga | gallium 69.723 |
| 32 Ge | germanium 72.630 |
| 33 As | arsenic 74.922 |
| 34 Se | selenium 78.971 |
| 35 Br | bromine 79.904 |
| 36 Kr | krypton 83.798 |
| 37 Rb | rubidium 85.468 |
| 38 Sr | strontium 87.62 |
| 39 Y | ytrrium 88.906 |
| 40 Zr | zirconium 91.224 |
| 41 Nb | niobium 92.906 |
| 42 Mo | molybdenum 95.95 |
| 43 Tc | technetium 98 |