7 multiple choice 2 points which subatomic particle is responsible for the majority of the chemical…

7 multiple choice 2 points which subatomic particle is responsible for the majority of the chemical reactivity of an element or compound? proton neutron atomic mass number photon electron clear my selection
Answer
Brief Explanations:
Electrons are involved in chemical bonding and reactions. Protons determine the element's identity, neutrons affect stability related to isotopes, atomic mass number is a sum of protons and neutrons, and photons are related to electromagnetic radiation, not chemical reactivity.
Answer:
E. electron