samarium (Sm) /səmer″ē·əm/ [Colonel M. von Samarski, 19th-century Russian mine official] , a metallic rare earth element. Its atomic number is 62; its atomic mass is 150.35.
samarium (Sm)
samarium (Sm) /səmer″ē·əm/ [Colonel M. von Samarski, 19th-century Russian mine official] , a metallic rare earth element. Its atomic number is 62; its atomic mass is 150.35.