The phrase that describes a valence electron is “an electron in the outer energy level of an atom”. Hence, option B is the correct answer.
Energy levels otherwise known as electron shells are described as distances that are fixed from the atom’s nucleus where electrons may be found. Electrons are defines as particles that are tiny and negatively charged that are present in an atom that tends to move around the positive nucleus present at the center. The valence electrons are described as follows:
- Electrons that are present in the outermost energy level of an atom are known as valence electrons
- It tends to exhibit the special significance
- It determines several properties of an atom
Thus, we can conclude that the valence electron is an electron that is present in the atom’s outermost energy level. Hence, option B is the correct answer.
Learn more about valence electrons here:
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