Ainslee


Name: Germanium
Symbol: Ge
Atomic Number: 32
Atomic Mass: 72.64
Standard State: solid at 298
Group name: (none)
Period in Periodic Table: 4
Color: greyish white
Classification: semi-metallic



Germanium/History- Germanium was an element whose existence was predicted by Mendeleev in 1871. His predictions for the properties of germanium are remarkably close to the reality. Germanium was discovered in a mineral called argyrodite by Clemens Alexander Winkler in 1886. Germanium compuonds/compuonds- For each compound, a formal oxidation number for germanium is given, but the usefulness of this number is limited for p-block elements in particular.In compounds of germanium (where known), the most common oxidation numbers of germanium are: 4,2,and-4.Germanium compound/electronegativities- The most used definition of electronegativity is that an element's electronegativity is the power of an atom when in a molecule to attract electron density to itself.The electronegativity depends upon a number of factors and in particuler as the other atoms in the molecule. The first scale of electronegativity was developed by Linus Pauling and on his scale germanium has a value of 2.01 on a scale running from from about 0.7 (an estimate for francium) to 2.20 (for hydrogen) to 3.98 (fluorine).