Question

which types of particles are involved in a fission reaction? (1 point) a positive proton strikes a large neutral nucleus. a positive proton strikes a large positive nucleus. a neutral neutron strikes a large positive nucleus. a neutral neutron strikes a large neutral nucleus.

Explanation:

In a fission reaction, a neutron (which is neutral) strikes a large - usually heavy and unstable - nucleus, causing it to split. Protons are positively charged and would be repelled by the positive charge of the nucleus, making it difficult for them to initiate fission.

Answer:

A. A neutral neutron strikes a large neutral nucleus