Test Bank for Inquiry Into Life 13th Edition Mader

3. The chemical reactivity of an element is dependent on A. the number of protons. B. the arrangement of neutrons. C. the number of electrons in the outermost shell. D. the number of protons and neutrons. E. the number of electrons in the inner shell. It is the outermost shell of an atom that can potentially react with electrons in the outermost shells of other atoms. The protons and neutrons remain in the nucleus and do not engage in chemical reactions. Bloom's Level: Remember Learning Outcome: 2.01.02 Section: 2.01 Topic: Chemistry 4. The atomic mass of an element A. is determined by its protons and neutrons. B. equals the number of protons plus the number of electrons. C. equals the number of neutrons. D. changes after each reaction. E. depends on the number of electrons in the outermost shell. The atomic mass is essentially the sum of protons and neutrons in the nucleus; it is not changed by chemical reactions. The mass of electrons is negligible.