A semiconductor is formed by which of the following bond?
A
Covalent
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B
Electrovalent
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C
Co-ordinate
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D
None of the above
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Solution
The correct option is A Covalent Semiconductors, such as silicon are made up of individual atoms bonded together in a regular, periodic structure to form an arrangement whereby each atom is surrounded by 8 electrons. The electrons surrounding each atom in a semiconductor are a part of a covalent bond. The covalent bond consists of two atoms "sharing" a single electron. Each atom forms four covalent bonds with the four surrounding atoms. Therefore, between each atom and its four surrounding atoms, 8 electrons are being shared. For example, the structure of a semiconductor is as shown: