The answer to the first question is "an atomic nucleus," which can contain two types of particles - protons and neutrons.
The answer to the second question is "a neutron," which is a particle present in all atoms.
The answer to the third question is "a neutron," which has no electrical charge.
Can contain two types of particles is what
Is a particle present in all atoms is what
Has no electrical charge is what
Nucleus , neutron, proton
1 answer