Mendeleev's Periodic Table > No - Nobelium

No - Nobelium

This artificial actinide was first reported by Fields in 1957 in Stockholm.

Atomic number - 102 Density g/mL -
Atomic weight u 259 Melting point K -
Bonding radius A - Boiling point K -
Atomic radius A - Heat of vaporization kJ/mol -
Ionization Potential V 6 .65 Heat of fusion kJ/mol -
Electronegativity - 1 .3 Specific heat J/gK -
The oxide is unknown. Crystal are unknown.
Electron config. : [Rn] 5f14 7s2

Isotopes of No (Nobelium):

MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 250
0.25 msec
a/SF,8.310
Fm-246/?
250.0 		251
0.8 sec
a/EC/SF,8.890
Fm-247/Md-251/?
251.08892 		252
2.30 sec
a/SF,8.549
Fm-248/?
252.08896 		253
1.7 min
a/EC,8.440
Fm-249/Md-253
253.09069
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 254
55 sec
a/EC/SF,8.226
Fm-250/Md-254/?
254.09094 		255
3.1 min
a/EC,8.445
Fm-251/Md-255
255.09323 		256
2.91 sec
a/SF,8.581
Fm-252/?
256.09427 		257
25 sec
a,8.450 MeV
Fm-253
257.09685
MASS abundancy
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass		 258
1.2 msec
a/SF,7.271
Fm-254/?
258.09825 		259
58 min
a/EC/SF,7.910
Fm-255/Md-259/?
259.10104 		260
106 msec
SF,1.000 MeV
?
260.10263 		262
5 msec
SF,2.740 MeV
?
262.10756


url: www.digitalexandria.com  |  mail:
Web Engineering: Alessandro Tugnoli, Alessandro Yoshi Polliotti, Daniele De Matteis   |  Graphic Design: Daniele De Matteis []
© 2003-2006 digitAlexandria