Name:  Germanium

Atomic Symbol and Mass Number: Ge [32]

Electron Configuration: [Ar] 3d   4s    4p

Atomic Radii: 211 pm

Electron Affinity: 119 kJ mol-1

Oxidation states: +4, +3, +2, +1, 0, -1, -2, -4

Electronegativity value: 2.01

Elemental Group: Carbon Group

Uses and properties:

• A lustrous, hard, gray-white semi-metallic element with crystalline and brittle structure

• Semiconductor

• Transparent to infrared radiation

• Expands as it freezes

• Transistors and integrated circuits

• Alloying agent and catalyst

• Infrared spectroscopes and detectors

• Compounds can be toxic to bacteria and harmless to mammals

 

Lewis diagram: