periodic element table
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Explanation:
- Hydrogen
- helium
- lithium
- berrylium
- boron
- carbon
- nitrogen
- oxygen
- fluorine
- neon
- sodium
- magnesium
- aluminum
- silicon
- phosphorus
- sulphur
- chlorine
- argan
- potassium
- calcium
- These are the first 20 elements are others are above.
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