21. Many properties of promethium rely on its position among lanthanides and are intermediate between those of neodymium and samarium . 22. Minerals with essential ( dominant ) samarium include monazite-( Sm ) and florencite-( Sm ). 23. Additionally, samarium is named after a mineral, which is in turn named after Vasili Samarsky-Bykhovets. 24. Isotopes commonly used in the treatment of bone metastasis are strontium-89 and samarium ( 153 Sm ) lexidronam. 25. Nowadays, a similar commodity product has the name " samarium -europium-gadolinium " ( SEG ) concentrate. 26. In its usual oxidized form, samarium is added to ceramics and glasses where it increases absorption of infrared light. 27. Another samarium -based laser became the first saturated X-ray laser operating at wavelengths shorter than 10 nanometers. 28. Furthermore, hydrodehalogenation of halogenated hydrocarbons to the corresponding hydrocarbon compound can be achieved using samarium ( II ) iodide. 29. The primary decay products before 153 Eu are isotopes of samarium and the primary products after are isotopes of gadolinium. 30. The primary decay products before 145 Pm are isotopes of neodymium and the primary products after are isotopes of samarium .
