Which part of the atom is primarily involved in chemical reactions?

• A. Nucleus
• B. Protons
• C. Electrons
• D. Neutrons

Answer: (C)

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 three main subatomic particles: protons, neutrons, and electrons.
3. Recognize that protons and neutrons are located in the nucleus and determine the identity and mass of the atom but do not directly participate in chemical bonding.
4. Know that electrons, especially those in the outermost shell (valence electrons), are responsible for forming chemical bonds by being shared, gained, or lost during reactions.
5. Conclude that electrons are the primary part of the atom involved in chemical reactions because they interact with electrons of other atoms to form bonds.