Electrons exist only at fixed levels of potential energy. However, if an atom absorbs sufficient energy, a possible result is that
- the atom would become a positively charged ion, or cation.
- an electron may move to an electron shell closer to the nucleus.
- an electron may move to an electron shell farther out from the nucleus.
- the atom may become a radioactive isotope.
- the atom would become a negatively charged ion, or anion.
Answer: C