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A subatomic particle is a unit of matter or energy that's the fundamental makeup of all matter. According in modern atomic theory, an atom has a nucleus, which is its center, or core. The nucleus contains subatomic particles: protons and neutrons. Protons are positively-charged particles.
o Non-Crystalline Material â a disordered arrangement of atoms (ie: glass) ï· Chemistry Basics: o Proton: positively charged subatomic particle â exist in the nucleus of an atom o Electron: negatively charged subatomic particle â exist in a cloud around the atom (in orbit â energy levels) o Neuron: neutrally charged subatomic particle â exist in the ...