Nobelium: the essentials
Nobelium is a radioactive "rare earth metal" named after Alfred Nobel who discovered dynamite.
Nobelium: historical information
A team working in Stockholm reported in 1957 an isotope whose atomic number is 102. They made this isotope by bombardment of 244Cm with 13C ions. They named the element nobelium after Alfred Nobel. In 1958 a group at Berkeley, California, USA reported that they were unable to reproduce this work, findings agreed by a Russian group at Dubna. However an authenticated discovery of nobelium was made in 1958 by Seaborg and others at Berkeley, California, USA. Since then a number of isotopes with mass numbers in the range 250-259 have been made.
Nobelium around us Read more »
Nobelium has no biological role.
Nobelium is a synthetic element that is not present in the geosphere.
|Location||ppb by weight||ppb by atoms||Links|
|Universe||(no data)||(no data)|
|Crustal rocks||(no data)||(no data)|
|Human||(no data) ppb by weight||(no data) atoms relative to C = 1000000|
Physical properties Read more »
Heat properties Read more »
- Melting point: about 1100 [827 °C (1521 °F)] K
- Boiling point: (no data) K
- Enthalpy of fusion: |203| kJ mol-1
Crystal structure Read more »
The solid state structure of nobelium is: .
Nobelium: orbital properties Read more »
Nobelium atoms have 102 electrons and the shell structure is 188.8.131.52.32.8.2. The ground state electronic configuration of neutral Nobelium is [Rn].5f14.7s2 and the term symbol of Nobelium is 1S0.
- Pauling electronegativity: 1.3 (Pauling units)
- First ionisation energy: 642 kJ mol‑1
- Second ionisation energy: (no data) kJ mol‑1
Isolation: coming soon!
Nobelium isotopes Read more »