Mill Valley School District Logo

        Home

        News

        Departments

        Schools

        Calendars

        School Board

        For Parents

        Committees/

           Commissions 

        Strategic Plan

        Policies  

        Kiddo!

        For Staff

        Employment

        Contact Us  

                                   

                                     


VJ s. mill valley Middle school web page

  • History
  • Facts
  • Name Origin
  • General information
  • Glossary
  • Bibliography

Don't get it mixed up with potassium, it's Hassium!!!

animation

Atomic number

108

Melting point

unknown

Boiling point

unknown

Symbol

Hs

Electron Configuration

(Rn)7s25f146g6

atomic weight

265

History:

In 1984 a germane research team lead by Peter Amberguster and Gottfeild at the institute of Harvey Ion reasurchat darmstadt bombarded led-208 atoms with iron-58 ions. In ten days of bombardment , they successfully produced three atoms of an isotope of element 108 with mass number 265 and a half-life of 2 msec.

 

 

 

 

 

Name origin:

The suggestion that the new manmade element be named, Hassium, which is derived from the Latin word for the German state Hassle, for that's where the institution was located.

Facts:

In 1994 a committee of the International union of pure and applied chemistry (IUPAC), convinced to resolve naming disputed for the transaction elements, they recommended that element number 108 be named Hahadeium, but the name Hassium, was adopted internationally.

108 = atomic #

General information:

The team that Had Created element number 108 also synthesized neilsborium The chemical and proposed properties are unknown.

Hs = Hassium

Glossary:

Ions:

Atoms or radicals having a charge of positive (cation) or negative (anion) electricity owing to the loss (positive) or gain (negative) of one or more

electrons:

Stable elementary particles having the smallest known negative charge, present in all elements; also called negations. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called cathode rays or beta rays, the latter being a high-energy byproduct of nuclear decay.

half-life:

<radio biology> The time required to reduce the amount of a radio nuclide to one-half the amount originally present. Physical or radioactive half-life refers to reduction of activity by radioactive decay, biological half-life refers to biological elimination from the body and effective half-life refers to the combined action of radioactive decay and biological elimination.