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Periodic Table - Elements - Dubnium
| Symbol |
Db |
|
| Atomic Number |
105 |
Relative Atomic Mass
12C = 12.0000 |
262.114 (262Db) |
Atomic Radius
pm |
139 (est.) |
First Ionisation Energy
kJ mol-1 |
640 (est.) |
| Electronegativity |
n/a |
Density
kg m-3 |
39000 |
Molar Volume
cm3 |
n/a |
Thermal Conductivity
W m-1 K-1 |
n/a |
Melting Point
K |
n/a |
Boiling Point
K |
n/a |
| Number of Isotopes |
7 |
Ground State Electron
Configuration |
[Rn]5f146d37s2 |
| Term Symbol |
4F3/2 |
| Discovery |
260Db and 261Db were initially reported by a group of scientists at Dubna, Russia. Discovery confirmed at Berkeley, USA and Dubna in 1970. Acknowledgment of the discovery is shared between the two groups |
| Name Derived From |
Named after Dubna |
Name in Other
Languages |
 Croatian | Dubnij |
 Danish | dubnium |
 Dutch | dubnium |
 Finnish | dubnium |
 French | dubnium |
 German | Dubnium |
 Italian | dubnio |
 Norwegian | hahnium |
 Portuguese | dúbnio |
 Spanish | dubnio |
 Swedish | dubnium |
| 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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