Atomic no and mass no 1 to 30 with valency and atomicity
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Atomic No Element Atomic Mass Valency
- Hydrogen 1.00794 1
- Helium 4.00282 0
- Lithium 6.941 1
- Beryllium 9.012182 2
- Boron 10.811 3
- Carbon 12.0107 4
- Nitrogen 14.0067 3
- Oxygen 15.9994 2
- Fluorine 18.5984032 1
- Neon 20.1797 0
- Sodium 22.98976928 1
- Magnesium 24.078 2
- Aluminium 26.9815386 3
- Silicon 28.0855 4
- Phosphorus 30.973762 3
- Sulphur 32.065 2
- Chlorine 35.453 1
- Argon 39.948 0
- Potassium 39.0983 1
- Calcium 40.078 2
- Scandium 44.955912 3
- Titanium 47.867 4
- Vanadium 50.9961 3
- Chromium 51.9961 2
- Manganese 54.938045 1
- Iron 55.845 0
- Cobalt 58.845 1
- Nickel 58.6934 2
- Copper 63.546 3
- Zinc 65.28 4
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