Question

Electrons found in the outermost shell or highest energy levels of an atom are responsible for determining the reactivity of the atom.

a) True
b) False

Answer 1

Valence electrons in the outermost energy level of an atom determine its reactivity.

Step-by-step explanation:

Electrons in the outermost energy level of an atom are called valence electrons. They determine many of the properties of an atom, including how reactive it is. Atoms whose outermost energy level is full are more stable and less likely to react than those with an unfilled outermost energy level.