Question

1. which of the following have equal, but opposite, electronic charges? (3pts) a proton and an electron a neutron and an electron. a neutron and a proton. an electron and an alpha particle. none of these options.

Explanation:

A proton has a +1 elementary charge, an electron has a -1 elementary charge. These two particles have equal magnitude of charge but opposite signs. Neutrons have no charge, and alpha particles have a +2 charge, so other options do not meet the criteria.

Answer:

A. A proton and an electron