Multiple choice

Why are metals good conductors of electricity?

  1. Because of free electrons

  2. Because of free proton

  3. Because of free neutron

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metals contain free electrons (delocalized electrons) that can move freely through the metallic lattice structure. These mobile charge carriers are responsible for conducting electric current. Protons and neutrons remain bound in the atomic nucleus and cannot move to conduct electricity.

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