Question

1. which part of an atom is represented by the yellow circles in the outer ring? proton neutron electron neutrino

Explanation:

In an atomic model, protons are positively - charged and located in the nucleus (red circles with + in the center). Neutrons are neutral and also in the nucleus (green circles in the center). Electrons are negatively - charged and orbit the nucleus (yellow circles with - in the outer ring). Neutrinos are subatomic particles not typically represented in basic atomic models like this one.

Answer:

electron