Ra-226
type: Concept
broader: radium
broader: radioactive isotope
preferred label: رادیم 226 @fa
related: Ra-228/Ra-226

Ra-228/Ra-226
type: Concept
preferred label: نسبت رادیم 228 به رادیم 226 @fa
related: Ra-226

radium
type: Concept
narrower: Ra-226
preferred label: رادیم @fa

radioactive isotope
type: Concept
narrower: Ra-226
preferred label: ایزوتوپ پرتوزا @fa