What is an atom?, Smallest part of a molecule, Smallest unit of matter that retains properties, A type of energy, A chemical reaction, Who discovered the electron?, Rutherford, Dalton, J.J. Thomson, Bohr, Which particle has a positive charge?, Electron, Proton, Neutron, Atom, Which particle has no charge?, Electron, Proton, Nucleus, Neutron, Where are protons and neutrons found?, Orbit, Shell, Nucleus, Outside atom, Which particle moves around the nucleus?, Electron, proton, neutron, molecule, What is the charge of an electron?, positive, negative, neutral, no charge , The centre of an atom is called?, Molecule, shell, neclues , orbit, Electrons revolve in fixed paths called?, layers, shells, orbit, both b and c, Which model is also called the “plum pudding model”?, Bohr model, Thomson model, Dalton model, Rutherford model.

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