Materials in which valence electrons are tightly bound to their atoms at low temperature are called
Correct answer: C. Insulator
- A. Semiconductor
- B. Superconductor
- C. Insulator
- D. Conductor
Explanation
Insulators have tightly bound valence electrons that do not contribute significantly to electrical conduction at low temperatures.
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About Physics of Solids
Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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