Question

negatively charged subatomic particles that have almost no mass are called: multiple choice electrons. ions. neutrons. polymers. protons.

Explanation:

Electrons are subatomic particles with a negative charge and extremely low mass compared to protons and neutrons. Ions are charged atoms or molecules. Neutrons are neutral subatomic particles in the nucleus. Polymers are large - molecule compounds, not subatomic particles. Protons are positively - charged subatomic particles in the nucleus.

Answer:

electrons