1) Atoms are made up of a) Protons, Neutrons and Ions b) Protons, Nucleous and Ions c) Protons, Neutrons and Electrons 2) What is the nucleous made out of? Name the sub-atomic particles. a) Proton b) Electron c) Neutron d) Atom 3) In any atom, the number of protons = number of electrons. True or False? a) True b) False 4) Are atoms electrically neutral? a) Yes b) No 5) What is the ray that travels through the gas? a) Electrode ray b) Cathode ray 6) What charge does cathode ray have? a) Positive charge b) Negative charge 7) What is the charge for electrons? a) Positive b) Negative 8) First shell can hold up to two electrons a) True b) False 9) The second shell can hold up to eight electrons a) True b) False 10) An atom has equal number of protons and electrons a) True b) False

Atoms

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