Hafnium

Catalogue

Atomic structure

Discovery

Source

Element USES

physical property

Chemical property

Geological data

Biology data

Atomic structure

Atomic radius/A: 2.16
Atomic volume/cm3 / mol: 13.6
Electronic configuration: 1 2 3 4 s2p6 s2 s2p6d10 s2p6d10f14 5 s2p6d2 6 s2
Ion radius/A: 0.71
Covalent radius/A: 1.44 oxidation state: 4

Discovery

1923 by D.C oster and G.C. von Hevesey (Denmark, Copenhagen) found.

Source

From the zircon for mine.

Element USES

For reaction bar, because it can absorb neutrons, also in the vacuum tubes used for gas in clearing agent.

physical property

State: silver transition metal.

Melting point (℃) : 2227
Boiling point (℃) : 4603
Density (g/cc, 300 K) : 13.31

Than hot/J/gK: 0.14
Evaporation heat/KJ/mol: 575
Melting hot/KJ/mol: 24.06

Conductive rate / 106 / cm: 0.0312
Coefficient of thermal conductivity/W/cmK: 0.23

Geological data

abundance
Retention time/year: unknown

The sun (relative to the H = 1 x 1012) : 6 sea/P.P.M. : 7 x 10-6
The earth's crust/P.P.M. : 5.3 the Atlantic ocean surface: Pacific surface:
Atmospheric/P.P.M. (volume) : the Atlantic ocean depths: deep in the Pacific:

Biology data

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

Detailed information

Hafnium/Hf