Nobelium

Radioactive element
Latin nameNobelium
English nameNobelium
chemical symbolNo
atomic number102
relative atomic mass(259,1011)
period7
groupIII.B
classificationactinides
discovery year1957
discovererGhiorso, Sikkeland,
Walton, Seaborg
melting point [°C]820
boiling point [°C]N/A
density [g cm-3]19,74
electronegativity [Pauling]1,3
oxidation statesII, III
electron configuration[Rn]5f14 7s2
1. ionizing potential [eV]6,65
state at normal conditionssolid

Nobelium is an artificial radioactive metallic element. Practical use is only for scientific research. In nature not occur.