Hs
Hs
Hassium
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Re
75
Os
76
Ir
77
Bh
107
Hs
108
Mt
109
 
 
 

PERIODIC TABLE OF THE ELEMENTS

HASSIUM

TRANSITION ELEMENT: IRON GROUP

Atomic number:108

Group numbers:8

Period:7

Electronic configuration:[Rn] 5f14 6d6 7s2

Formal oxidation number:

Electronegativities:-

Atomic radius / pm:-

Relative atomic mass:[277]

 

Hassium was discovered by Peter Armbruster, Gottfried Münzenber (DE) and their co-workers at the Heavy Ion Research Laboratory (Gesellschaft für Schwerionenforschung, GSI) in Darmstadt, Germany in 1984. The origin of the name is the Latin word Hassias meaning Hess, the German state. It is a synthetic radioactive metal. Hassium was produced by bombarding lead-208 with iron-58.

CRYSTALLOGRAPHIC DATA
 -

Crystal structure:

-

Unit-cell dimensions / pm:

-

Space group:

-

 
PHYSICAL PROPERTIES

Density / g dm-3:-

Molar volume / cm3mol-1:-

Electrical resistivity / μΩcm:- (20 °C)

THERMAL PROPERTIES

Thermal conductivity / W m-1K-1:-

Melting point / °C:-

Boiling point / °C:-

Heat of fusion / kJ mol-1:-

Heat of vaporization / kJ mol-1:-

Heat of atomization / kJ mol-1:-

IONIZATION ENERGIES

1st ionization energy / kJ mol-1:-

2nd ionization energy / kJ mol-1:-

3rd ionization energy / kJ mol-1:-

ABUNDANCE OF ELEMENTS

in the atmosphere / ppm:-

in the Earth's crust / ppm:-

in the oceans / ppm:-

ISOTOPES
IsotopeRelative atomic massMass percent (%)
REDUCTION POTENTIALS
Balanced half-reaction Eo / V

 

107 Bohrium <= 108 Hassium => 109 Meitnerium