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Periodic Table - Elements - Cobalt
| Symbol |
Co |
|
| Atomic Number |
27 |
Relative Atomic Mass
12C = 12.0000 |
58.93320 |
Atomic Radius
pm |
125 |
First Ionisation Energy
kJ mol-1 |
760.0 |
| Electronegativity |
1.88 |
Density
kg m-3 |
8900 [293 K]
7970 [m.p.] |
Molar Volume
cm3 |
6.62 |
Thermal Conductivity
W m-1 K-1 |
100 [300 K] |
Melting Point
K |
1768 |
Boiling Point
K |
3143 |
| Number of Isotopes |
17 |
Ground State Electron
Configuration |
[Ar]3d74s2 |
| Term Symbol |
4F9/2 |
| Discovery |
Discovered by G. Brandt (Stockholm, Sweden) in 1735 |
| Name Derived From |
German kobald meaning 'goblin' |
Name in Other
Languages |
 Croatian | Kobalt |
 Danish | cobalt |
 Dutch | kobalt |
 Finnish | koboltti |
 French | cobalt |
 German | Kobalt |
 Italian | cobalto |
 Norwegian | kobolt |
 Portuguese | cobalto |
 Spanish | cobalto |
 Swedish | kobolt |
| 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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