Definition: nobelium

Search dictionary for

Source: WordNet (r) 1.7 

nobelium
     n : a radioactive transuranic element synthesized by bombarding
         curium with carbon ions; 7 isotopes are known [syn: No,
          atomic number 102]

Source: Elements database 20001107 

nobelium
Symbol: No
Atomic number: 102
Atomic weight: (254)
Radioactive metallic transuranic element, belongs to the actinoids. Seven
known isotopes exist, the most stable being No-254 with a half-life of 255
seconds. First identified with certainty by Albert Ghiorso and Glenn T.
Seaborg in 1966. Unnilbium has been proposed as an alternative name.