Ge
Germanium · element 32
Metalloid · Solid at room temperature
Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Purified germanium is a semiconductor, with an appearance most similar to elemental silicon.
Key facts
Atomic mass
72.6308 u
how heavy one atom is
Phase (room temp.)
Solid
Density
5.323 g/cm³
how tightly packed it is
Melting point
1211.4 K (938 °C)
when solid turns to liquid
Boiling point
3106 K (2833 °C)
when liquid turns to gas
Period
4
its row in the periodic table
Group
14
its column in the periodic table
Block
P-block
the neighbourhood it lives in
Electronegativity
2.01
how strongly it pulls electrons
Electron configuration
[Ar] 3d10 4s2 4p2
where its electrons live
Shells
2 · 8 · 18 · 4
electrons in each layer, inside to out
Discovered by
Clemens Winkler
who found it
Appearance
grayish-white
what it looks like
Source: Wikipedia