D2U1B3N1I1U1M3S1
13 points
DUBNIUMS is validvalid
DUBNIUM, the chemical element with atomic number 105 [n]
DUBNIUM, an element produced by bombarding plutonium with high energy neon ions [n]
DUBNIUM, the chemical element with atomic number 105 [n]
DUBNIUM, an element produced by bombarding plutonium with high energy neon ions [n]