What is the approximate atomic mass of Hydrogen (H)?, 1, 32, 24, 35.5, What is the approximate atomic mass of Helium (He)?, 23, 9, 35.5, 4, What is the approximate atomic mass of Lithium (Li)?, 14, 20, 1, 7, What is the approximate atomic mass of Beryllium (Be)?, 9, 12, 19, 1, What is the approximate atomic mass of Boron (B)?, 11, 9, 32, 16, What is the approximate atomic mass of Carbon (C)?, 40 (Ca), 12, 20, 19, What is the approximate atomic mass of Nitrogen (N)?, 14, 4, 23, 16, What is the approximate atomic mass of Oxygen (O)?, 7, 16, 9, 27, What is the approximate atomic mass of Fluorine (F)?, 40 (Ar), 11, 23, 19, What is the approximate atomic mass of Neon (Ne)?, 14, 32, 39, 20, What is the approximate atomic mass of Sodium (Na)?, 23, 14, 7, 31, What is the approximate atomic mass of Magnesium (Mg)?, 24, 40 (Ar), 9, 28, What is the approximate atomic mass of Aluminum (Al)?, 27, 14, 19, 4, What is the approximate atomic mass of Silicon (Si)?, 28, 40 (Ca), 24, 35.5, What is the approximate atomic mass of Phosphorus (P)?, 27, 7, 31, 24, What is the approximate atomic mass of Sulfur (S)?, 23, 27, 7, 32, What is the approximate atomic mass of Chlorine (Cl)?, 35.5, 9, 28, 32, What is the approximate atomic mass of Argon (Ar)?, 23, 32, 19, 40 (Ar), What is the approximate atomic mass of Potassium (K)?, 40 (Ar), 40 (Ca), 23, 39, What is the approximate atomic mass of Calcium (Ca)?, 20, 40 (Ca), 16, 39

20 First Atomic mass of elements

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