H - Hydrogen, Helium - He, Lithium - Li, Be - Beryllium, B - Boron, C - Carbon, Nitrogen - N, Oxygen - O, Fluorine - F, Ne - Neon, Na - Sodium, Magnesium - Mg, Aluminum - Al, Si - Silicon, P - Phosphorus, Sulfur - S, Chlorine - Cl, Ar - Argon, Potassium - K, Ca - Calcium,

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