Category

Technetium

Catalogue

Atomic structure
Discovery
Source
Element USES
physical property
Chemical property
Geological data
Biology data

Atomic structure

Atomic volume/cm3 / mol: 8.5
Electronic configuration: 1 2 3 4 s2p6 s2 s2p6d10 s2p6d5 5 s2
Ion radius/A: 0.56
Covalent radius/A: 1.27 oxidation state: 7

Discovery

1937 by c. Perrier and E.G. Segre (Italy) found.

Source

The first DaoHe (deuterium) in a cyclotron fired in molybdenum and get.

Element USES

Medical research radiation sources.

physical property

State: the first artificial elements.

Melting point (℃) : 2200
Boiling point (℃) : 4877
Density (g/cc, 300 K) : 11.5


Than hot/J/gK: 0.21
Evaporation heat/KJ/mol: 660
Melting hot/KJ/mol: 24


Conductive rate / 106 / cm: 0.067

Geological data

abundance
Retention time/year:

The sun (relative to the H = 1 x 1012) : unknown sea/P.P.M. : zero
The earth's crust/P.P.M. : zero the Atlantic ocean surface: Pacific surface:
Atmospheric/P.P.M. (volume) :

Biology data

Content in the human body
Liver/P.P.M. :
Organs: zero muscle/P.P.M. :
Blood/mg dm-3: th intake/mg: zero
Bone/P.P.M. : people (70 Kg) are total body/mg: zero

Detailed information

Technetium/Tc