1) Smallest particle into which an element can be divided a) Molecules b) Atom c) Matter 2) Positively charge particle a) Proton b) Electron c) Nuetron 3) Negatively charge particle a) Proton b) Electron c) Neutron 4) Neutral or no charge particle a) Proton b) Electron c) Neutron 5) Stated that all atoms are particles that cannot be created, destroyed , or divide. a) Dalton b) Rutherford c) J. J. Thomson 6) Discovered subatomic particle a) Dalton b) Thomson c) Rutherford 7) Discovered nucleus a) Dalton b) Thomson c) Rutherford 8) Developed electron cloud model a) Schrodinger b) Chadwick c) Bohr 9) Stated that electrons travel around the nucleus in definite path and fixed position a) Schrodinger b) Bohr c) Chadwick 10) Stated that neutrons has no electric charge a) Schrodinger b) Bohr c) Chadwick

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