Which statement best describes electrons?

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Electrons are negative subatomic particles that orbit the nucleus, forming the electron cloud or shells around the nucleus. Their mass is very small, so they contribute little to the atom’s weight compared with protons and neutrons, and in a neutral atom their numbers balance the positive charge of the nucleus. The arrangement of electrons around the nucleus determines how atoms bond and interact with other atoms, which is why this description is the best fit. The other statements miss key facts: electrons are not neutral and are not located inside the nucleus, and they are not positively charged particles.