What is the symbol of sodium, Na, S, What is the element that has symbol of K, Potassium, Krypton, What is the element that has symbol of Li, Lithium, Sodium, What is the symbol of helium, He, H, What is the symbol of chlorine, Cl, C, What is the element that has symbol of F, Flourine, Flavine, What is the symbol of calcium, Ca, Cl, What is the symbol of Argon, Ar, A, what is the symbol of carbon, C, Ca, What is the symbol of nitrogen, N, Ni

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