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