1st 20 Elements
1st 20 elements for revision!
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- Sulfur
- S - 16
- Lithium
- Li - 3
- Potassium
- K - 19
- Nitrogen
- N - 7
- Neon
- Ne - 10
- Oxygen
- O - 8
- Silicon
- Si - 14
- Boron
- B - 5
- Beryllium
- Be - 4
- Helium
- He - 2
- Sodium
- Na - 11
- Magnesium
- Mg - 12
- Argon
- Ar - 18
- Hydrogen
- H - 1
- Cholrine
- Cl - 17
- Calcium
- Ca - 20
- Carbon
- C - 6
- Aluminium
- Al - 13
- Flourine
- F - 9
- Phosphorus
- P - 15