Mendelevium

Symbol MdAtomic number 101...
Atomic mass
258
 Thermal conductivity
0.1
Atomic radius
...
 Covalent radius
...
Density
...
 Atomic volume
...
Melting point
...
 Oxidation states
...
Boiling point
...
 Stable isotopes
0
Heat of vapor.
...
 Electronegativity
1.3
Heat of fusion
...
 First ionization
6.58
Specific heat
...
 Electrical conduct.
...
Electron configuration

General descriptionNuclear data
 Index

Periodic Table

Chemistry concepts
 
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Mendelevium

Named for the Russian chemist Dmitry Mendeleyev, mendelevium-256 was discovered in 1955 at the University of California, Berkeley. It was produced by bombarding einsteinium-253 with alpha particles accelerated in a cyclotron. The isotope produced had a half-life of about 1.3 hours. The most stable isotope, mendelevium-258, has a half-life of 54 days.

Atomic dataNuclear data
 Index

Periodic Table

Chemistry concepts

Reference
Pauling
Ch. 29
 
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Mendelevium Nuclear Data

Z
A
Atomic
Mass (u)
Nuclear
Mass(GeV/c2
Binding
Energy(MeV)
Spin
Natural
Abund.
Half-life
Decay
Q
MeV
101
257
257.095580
239.4333
1906.3
7/2
...
5.5h
EC,a
0.45,7.60
101
258
258.098570
240.3676
1911.6
8
...
51.5d
a
7.40
Atomic data
Index

Periodic Table

Chemistry concepts

Reference
Rohlf
 
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