Sat September 29, 2012 By: Kamlesh Sahu

what are free electrons?can electrons leave their atom and move around the metal.

Expert Reply
Sun September 30, 2012
No there are no exactly free electrons in the metals.
We just approximate them as free. They can move from one atom to another but cannot leave the atoms.
It is like forming of molecular bonds in metals between various atoms where electron are shared.
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