18
Chemie (Subject) / Elemente 1-18 (Lesson)
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- Wasserstoff H 1
- Helium He 2
- Lithium Li 3
- Beryllium Be 4
- Bor B 5
- Kohlenstoff C 6
- Stickstoff N 7
- Sauerstoff O 8
- Fluor F 9
- Neon Ne 10
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- Natrium Na 11
- Magnesium Mg 12
- Aluminium Al 13
- Silicium Si 14
- Phosphor P 15
- Schwefel S 16
- Chlor Cl 17
- Argon Ar 18