Electronic Principles
What is a free electron?

An electron that costs nothing
An electron that has been freed from its parent atom
An electron that has no electrical charge
None of these
An electron that has twice the amount of charge of a normal electron

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Electronic Principles
What is a negative ion?

An atom that contains more electrons than neutrons
An atom that contains more protons than electrons
None of these
An atom that contains more protons than neutrons
An atom that contains more electrons than protons

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