Explanatory notes
… products. 2844.10 ‑ Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products … einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, … which possess the phenomenon of radioactivity (described below); stable isotopes, on the other hand, are classified in …