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Periodic Table - Elements - Einsteinium
| Symbol |
Es |
|
| Atomic Number |
99 |
Relative Atomic Mass
12C = 12.0000 |
252.083 (252Es) |
Atomic Radius
pm |
203 |
First Ionisation Energy
kJ mol-1 |
619 |
| Electronegativity |
1.3 |
Density
kg m-3 |
n/a |
Molar Volume
cm3 |
n/a |
Thermal Conductivity
W m-1 K-1 |
10 [300 K] (est.) |
Melting Point
K |
1130 ± 30 |
Boiling Point
K |
n/a |
| Number of Isotopes |
17 |
Ground State Electron
Configuration |
[Rn]5f117s2 |
| Term Symbol |
5I15/2 |
| Discovery |
Discovered by G.R. Choppin, S.G. Thompson, A. Ghiorso and B.G. Harvey in the deris of the thermonuclear explosion in the Pacific in 1952 |
| Name Derived From |
Named after Albert Einstein |
Name in Other
Languages |
 Croatian | Einsteinij |
 Danish | einsteinium |
 Dutch | einsteinium |
 Finnish | einsteinium |
 French | einsteinium |
 German | Einsteinium |
 Italian | einsteinio |
 Norwegian | einsteinium |
 Portuguese | einstānio |
 Spanish | einsteinio |
 Swedish | einsteinium |
| Peter van der Krogt's Element Multidict - element name translations in over 48 langauges |
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Page compiled: Wed Sep 05 18:37:53 GMT+01:00 2001
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