Negatively charged atoms or molecules that have gained extra electrons, moving toward the positive electrode during electrolysis.
Greek 'anion' from 'ana-' (up) and 'ion' (going), coined by scientist Michael Faraday in 1834 to describe particles moving upward through a solution toward the positive electrode.
Anions are nature's way of balancing charges—without them, chemistry couldn't happen, your nerves wouldn't fire, and salt wouldn't exist as we know it!
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