No - Nobelium

There is no nobelium in our lab. 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

Top | About | Search | Comment | PC Chemistry

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac** Rf Db Sg Bh Hs Mt 110 111 112 113
Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

Isotopes of No: Click mass number for decay process, product for element page.
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 		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 		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 		MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass

Updated by clh on 2/6/98. This is not a publication of Phoenix College.