Pb-208
type: Concept
broader: lead
broader: stable isotope
preferred label: سرب 208 @fa
related: Pb-208/Pb-206
related: Pb-208/Pb-204

Pb-208/Pb-204
type: Concept
preferred label: نسبت سرب 208 به سرب 204 @fa
related: Pb-208

Pb-208/Pb-206
type: Concept
preferred label: نسبت سرب 208 به سرب 206 @fa
related: Pb-208

lead
type: Concept
narrower: Pb-208
preferred label: سرب @fa

stable isotope
type: Concept
narrower: Pb-208
preferred label: ایزوتوپ پایدار @fa