Element R

Element r has the Greek rho symbol. Ls-1 uses lots of R, resulting in a green blast. Vader's sabre has a structure of K9πρ2Fe10O5. Another name for element R is Rho and for P, Pi. Sky's blue sabre has a structure of Rho3U2Pi3C4Po5. Turquoise sabres are only RhoPi. Rho is usually an anion, while P is a cation.