C3A1R1B3O1N1I1U1M3S1
16 points
CARBONIUMS is validvalid
CARBONIUM, a cation with a pentavalent carbon atom carrying a formal positive charge [n]
CARBONIUM, a type of positively charged organic ion [n]
CARBONIUM, a cation with a pentavalent carbon atom carrying a formal positive charge [n]
CARBONIUM, a type of positively charged organic ion [n]