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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
1. In the Rutherford gold foil experiment, the fact that most of the alpha particles were NOT deflected as they passed through the gold foil indicates that: a) the nucleus is positively charged. b) the atom is mostly empty space. c) atoms are solid spheres touching each other in the solid state. d) gold is very dense. 1. In the Rutherford gold foil experiment, the fact that most of the alpha particles were NOT deflected as they passed through the gold foil indicates that: a) the nucleus is positively charged. b) the atom is mostly empty space. c) atoms are solid spheres touching each other in the solid state. d) gold is very dense. 2. Which two subatomic particles have approximately the same mass? a) protons and neutrons b) protons and electrons c) electrons and nuclei d) neutrons and electrons e) protons and alpha particles 2. Which two subatomic particles have approximately the same mass? a) protons and neutrons b) protons and electrons c) electrons and nuclei d) neutrons and electrons e) protons and alpha particles 3. The number of electrons in a neutral atom of an element is always equal to the _______ of the element. a) mass number b) atomic number c) atomic mass unit d) isotope number e) density 3. The number of electrons in a neutral atom of an element is always equal to the _______ of the element. a) mass number b) atomic number c) atomic mass unit d) isotope number e) density 4. The difference between the mass number of an atom and the atomic number of the atom is always equal to __________. a) the charge of the ion. b) the atomic number of the element. c) the atomic mass unit. d) the number of protons in the nucleus. e) the number of neutrons in the nucleus. 4. The difference between the mass number of an atom and the atomic number of the atom is always equal to __________. a) the charge of the ion. b) the atomic number of the element. c) the atomic mass unit. d) the number of protons in the nucleus. e) the number of neutrons in the nucleus. 5. Isotopes are atoms of the same element that: a) have different numbers of electrons. b) have different numbers of protons. c) have different atomic numbers. d) have different numbers of neutrons. e) have different nuclear charges. 5. Isotopes are atoms of the same element that: a) have different numbers of electrons. b) have different numbers of protons. c) have different atomic numbers. d) have different numbers of neutrons. e) have different nuclear charges. 6. Particles with large mass will bend ___ than particles with small mass when passing between charged plates: a) more b) less c) the same 6. Particles with large mass will bend ___ than particles with small mass when passing between charged plates: a) more b) less c) the same 7. Who is associated with the plum pudding model of atoms: a) Rutherford b) Thomson c) Dalton 7. Who is associated with the plum pudding model of atoms: a) Rutherford b) Thomson c) Dalton 8. Which of the following scientists is not matched with the correct experiment? a) Rutherford, Gold Foil (or alpha scatter) b) Thomson, Cathode Ray Tubes c) Millikan, Oil Drop d) Becquerel, Separation of Radioactivity 8. Which of the following scientists is not matched with the correct experiment? a) Rutherford, Gold Foil (or alpha scatter) b) Thomson, Cathode Ray Tubes c) Millikan, Oil Drop d) Becquerel, Separation of Radioactivity