In this diagram, which subatomic particles have negative charge?

Answer : The subatomic particles that have the negative charge is, Electron (E).
Explanation :
As we know that an atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.
The protons and the neutrons are located inside the nucleus or center of the nucleus where the mass of the an atom is concentrated and the electrons are located around the nucleus.
The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.
In the given diagram, the subatomic particle protons (P), electrons (E) and neutrons (N) have positive charge, negative and no charge.
Hence, the subatomic particles that have the negative charge is, Electron (E).