Can you name the elements whose two-letter symbol can be formed by combining two one-lettered symbols? by tobley

Element
	Si = Sulfur + Iodine
	Sc = Sulfur + Carbon
	Co = Carbon + Oxygen
	Ni = Nitrogen + Iodine
	Cu = Carbon + Uranium
	Nb = Nitrogen + Boron
	In = Iodine + Nitrogen
	Sn = Sulfur + Nitrogen
	Sb = Sulfur + Boron
	Cs = Carbon + Sulfur
	Ho = Hydrogen + Oxygen
	Yb = Yttrium + Boron
	Hf = Hydrogen + Fluorine

Element
	Os = Oxygen + Sulfur
	Pb = Phosphorus + Boron
	Bi = Boron + Iodine
	Po = Phosphorus + Oxygen
	Np = Nitrogen + Phosphorus
	Pu = Phosphorus + Uranium
	Bk = Boron + Potassium
	Cf = Carbon + Fluorine
	No = Nitrogen + Oxygen
	Bh = Boron + Hydrogen
	Hs = Hydrogen + Sulfur
	Cn = Carbon + Nitrogen
Cn = Carbon + Nitrogen

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