Atom is the smallest particle of:, Compound, Element, Mixture, Solution, Electron was discovered by, Rutherford, J.J. Thomson, Neils Bohr, Chadwick, Proton was discovered by, Goldstein, Thomson, Bohr, Dalton, Neutron was discovered by, Rutherford, Chadwick, Thomson, Dalton, Which particle has negative charge?, Proton, Neutron, Electron, Nucleus, Which particle has positive charge?, Electron, Proton, Neutron, Atom, Which particle has no charge, Proton, Electron, Neutron, Ion, Nucleus is located at the:, Outside of atom, Centre of atom, Shell of atom, Orbit of atom, The nucleus contains, Electrons and protons, Protons and neutrons, Electrons and neutrons, Only electrons, Electrons revolve around the nucleus in, Nucleus, Orbits, Protons, Neutrons

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