Challenge accepted.
Boron, Uranium, Neon, Argon, Yttrium
Nitrogen, Actinium, Lithium
Deuterium, Uranium, Nitrogen, Sulfur, Phosphorus, Argon, Cerium
Chromium, Oxygen, Boron, Astatine
Uranium, Molybdenum, Rhenium, Oxygen, Nitrogen
That sure was difficult without a periodic table on hand.