The material in which the outermost electrons in the atoms are so loosely bound to their atoms that they are free to travel around are called _____________.
A
semiconductors
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B
conductors
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C
insulators
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D
superconductors
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Solution
The correct option is B conductors The electrons which are far away from nucleus and well shielded so that they can easily free themselves from atom when a small electric field is applied are known as free electrons.
The materials having such free electrons are good conductors of electricity and are called conductors.