1 proton - H, Atomic number 6 - Carbon, Hg - Mercury, 13 protons - Aluminum, Atomic number 28 - Ni, Atomic mass 28 - Silicon, Atomic mass 20 - Neon, 55 protons + neutrons - Mn, 11 protons - Sodium, Sn - Tin, Au - Gold, 18 protons - Argon, 75 protons + neutrons - As, 16 protons - Sulfur,

Using the Periodic Table

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