PULMOBRANCHIATE has BARIUM, BOHRIUM, BROMINE, CARBON, CERIUM, COBALT, ERBIUM, HELIUM, IRON,
NOBELIUM, PLATINUM, RHENIUM, TERBIUM, THORIUM and TIN Once again, simple pluralisation by the addition of an S generates an additional three elements, for this 18-element 16-letter solution:
IUPAC's recommended element names revealed Atomic Voting number Name Symbol in favor(a) 101 Mendelevium Md 20 102
Nobelium No 20 103 Lawrencium Lr 20 104 Dubnium Db 19 105 Joliotium Jl 18 106 Rutherfordium Rf 18 107 Bohrium Bh 20 108 Hahnium Hn 19 109 Meitnerium Mt 20