Which subatomic particle is primarily involved in chemical reactions?

• A. Neutron
• B. Electron
• C. Nucleus
• D. Proton

Answer: (B)

Verified step by step guidance

1. Understand that chemical reactions involve the making and breaking of bonds between atoms.
2. Recall that atoms consist of protons, neutrons, and electrons, where protons and neutrons are located in the nucleus, and electrons orbit around the nucleus.
3. Recognize that protons determine the element's identity, and neutrons contribute to atomic mass but do not directly participate in chemical bonding.
4. Focus on electrons, especially those in the outermost shell (valence electrons), as they are the ones that interact during chemical reactions.
5. Conclude that electrons are the subatomic particles primarily involved in chemical reactions because they are responsible for bond formation and electron transfer.