The Elements (Periodic Table)

There's antimony, arsenic, aluminum, selenium, And hydrogen, and oxygen, and nitrogen, and rhenium, And nickel, neodymium, neptunium, germanium, And iron, americium, ruthenium, uranium, Europium, zirconium, lutetium, vanadium, And lanthanum, and osmium, and astatine, and radium, And gold, protactinium, and indium, and gallium, And iodine, and thorium, and thulium, and thallium There's yttrium, ytterbium, actinium, rubidium And boron, gadolinium, niobium, iridium And strontium, and silicon, and silver, and samarium And bismuth, bromine, lithium, beryllium, and barium There's holmium, and helium, and hafnium, and erbium And phosphorous, and francium, and fluorine, and terbium And manganese, and mercury, molybdenum, magnesium Dysprosium, and scandium, and cerium, and cesium And lead, praseodymium, and platinum, plutonium Palladium, promethium, potassium, polonium And tantalum, technetium, titanium, tellurium And cadmium, and calcium, and chromium, and curium There's sulfur, californium, and fermium, berkelium And also mendelevium, einsteinium, and nobelium And argon, krypton, neon, radon, xenon, zinc, and rhodium And chlorine, carbon, cobalt, copper Tungsten, tin, and sodium These are the only ones of which the news has come to Harvard And there may be many others but they haven't been discovered