☢️9️⃣0️⃣🦴

#strontium-90 #sr-90 #radioactive isotope #radiation #nuclear fallout #fission product #health hazard

☢️Cs¹³⁷

#cesium-137 #cs-137 #radioactive isotope #nuclear physics #radioactivity

☢️🟦

#cobalt-60 #radioactive isotope #radiation therapy #nuclear medicine #gamma ray

☢️⏳⚛️

#rubidium #rubidium-87 #radioactive isotope #rb-87 #rubidium-strontium dating #radiometric dating

☢️Cs

#cesium-137 #cs-137 #radioactive isotope #nuclear fission product #gamma emitter #radiation source

🟦6️⃣0️⃣☢️

#cobalt-60 #co-60 #radioactive isotope #cobalt blue #nuclear #gamma ray source

🇵🇱☢️2️⃣0️⃣8️⃣

#polonium-208 #po-208 #polish element #marie curie discovery #radioactive isotope #element 84