Argon, Oxygen, Copper, Nickel, Calcium, Neon, Potassium, Beryllium, Chromium, Zinc, Carbon, Nitrogen, Aluminium, Phosphorus, Silicon, Vanadium, Gallium, Manganese, Iron, Helium, Scandium, Sodium, Sulfur, Cobalt, Arsenic, Lithium, Fluorine, Boron, Titanium, Germanium, Hydrogen, Chlorine. Is "Magnesium" in the previous list? 
Provide no explanation, directly answer with only "Yes." or "No."