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Which statement best answers the question, "Why is copper a good conductor of electricity?"?
A. Copper atoms have a loosely held electron in their outer shell that is able to move freely to other atoms
B. Copper atoms are tightly bound and are able to work with other copper atoms to exchange electrical charges
C. Copper has an equal number pf protons and electrons making the flow of current possible.
D. Copper's outer shell electrons are not balanced and must join with other copper atoms in order to be stable.

Respuesta :

c copper has an equal amount of protons allowing electricity to move freely through it
impossiblestargirl
Each copper atom loses one electron and becomes a positive ion, so copper is a like a net of positive ions with free electrons moving about.They're also known as conduction electrons, because they help copper to be a good conductor of heat and electricity.

So the answer is A, I believe! 

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