C. An element that has an unequal number of protons and electrons
Explanation:
An element has an equal number of protons and electrons, because the positive and negative energy has to cancel out so the atom is neutral. Ions are versions of atoms that lose electrons so they have a different energy than the initial atom, but they're still that atom because the number of protons determines the identity of the atom, and that number doesn't change.
Answer: I have no idea what kind of question this is, but I'm assuming it's a true or false question, and this is true. Although the north-bound pole is south-seeking, a compass would eventually draw you to the North Pole.
