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Rb
(Encyclopedia) Rb, symbol for the element rubidium.Pm
(Encyclopedia) Pm, symbol for the element promethium.Pr
(Encyclopedia) Pr, symbol for the element praseodymium.Pu
(Encyclopedia) Pu, symbol for the element plutonium.Pt
(Encyclopedia) Pt, symbol for the element platinum.Os
(Encyclopedia) Os, symbol for the element osmium.Ba
(Encyclopedia) Ba, symbol for the element barium.Pb
(Encyclopedia) Pb, symbol for the element lead.Pd
(Encyclopedia) Pd, symbol for the element palladium.Pa
(Encyclopedia) Pa, symbol for the element protactinium.