Nobelium

2 definitions found

From WordNet (r) 2.0 [wn]:

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

From Elements database 20001107 [elements]:



  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.