<p> Atomic Structure Test</p><p>Choose the best answer and use the answer sheet provided. </p><p>1 The nucleus is the center or core of the atom. </p><p> a. True b. False</p><p>2 How many electrons, protons, and neutrons are in chlorine?</p><p> a. 17 electrons, 18 protons, and 17 neutrons</p><p> b. 17 electrons, 18 protons, and 35 neutrons</p><p> c. 17 electrons, 17 protons, and 18 neutrons</p><p> d. 35 electrons, 17 protons ,and 18 neutrons</p><p>3 Who was the first known contributor to the atomic theory? a. Bohr b. Dalton c. Thomson d. Democritus </p><p>4 Which statement correctly describes the charges associated with an atom?</p><p> a. The nucleus and the electron cloud are positively charged.</p><p> b. The nucleus and electron cloud are negatively charged. </p><p> c. The nucleus is negatively charged and the electron cloud is positively charged. </p><p> d. The nucleus is positively charged and the electron cloud is negatively charged. </p><p>5 Which subatomic particles are located within the nucleus of the atom? a. protons and neutron c. protons and electrons b. electrons and neutrons d. protons, neutrons, and electrons </p><p>6 Which subatomic particles each have a positive charge? a. electron b. proton c. neutron 7 Which subatomic particles make up most of the mass of an atom? a. electron c. electron and proton b. proton and neutron d. proton, electron, and neutron</p><p>8 Which subatomic particles each have a negative charge? a. electron b. proton c. neutron</p><p>9 The atomic number of neon is 10. Which choice is correct in showing the amount of protons, electrons, and neutrons? a. b. c. d. electrons = 0 electrons =0 electrons = +10 electrons = -10 neutrons = +10 neutrons = -10 neutrons = 0 neutrons = 0 protons = -10 protons = +10 protons = -10 protons = +10</p><p>10 Using the picture above, what is the atomic number of mercury? a. 47 b. 201 c. 80 d. 200.59</p><p>11 Using the same picture, what is the atomic mass of Thallium rounded to the nearest whole number? a. 81 b. 204.38 c. 204 d.205</p><p>12 Using the same picture, how many neutrons are in an atom of silver? a. 47 b. 61 c. 60 d. 108</p><p>13 The atomic number of an element tells us ______. a. the number of electrons b. the number of protons c. the number of neutrons d. the number of protons or electrons </p><p>14 The atomic mass is equal to ______a. the number of protons and electrons b. the number of protons and neutrons c. the number of electrons and neutrons d. the number of protons, electrons, and neutrons</p><p>Use your periodic table to answer the following questions. 15 What is the atomic number of calcium? a. 20 b. 40.08 c. 40 d. 4</p><p>16 What is the atomic mass of calcium? a. 20 b.40 c. 41 d. 4</p><p>17. What is the atomic number of copper? a. 64 b. 29 c. 63 d.11</p><p>18. What is the atomic mass of copper? a. 64 b. 29 c. 63 d.11</p><p>19. What does the 8 on Oxygen stand for? a. number of protons b. number of electrons c. atomic number d. all of the above </p><p>20. Elements are defined by their number of protons. a. True b. False </p><p>21. Electrons are located ___ a. within the nucleus b. outside the nucleus with the protons c. outside the nucleus in the electron cloud 22. Who further developed Democritus’ early contributions to the atomic theory by proposing that each chemical element has its own kind of atom? a. Bohr b. Dalton c. Thomson d. Democritus</p><p>23. What are the basic building blocks of matter? a. atoms b. elements c. cells d. water</p><p>24. John Dalton stated that atoms could not be divided. a. true b. false</p><p>25. John Dalton’s atomic theory included that atoms of the same element are exactly alike. a. true b. false</p><p>26. What is the SI unit for mass? a. meter b. kilogram c. Kelvin d. grams per cubic centimeter Use the chart above to answer the following questions. 27. How many people have a shoe length of 21cm? a. 1 b. 21 c. 0 d. 8</p><p>28. Which shoe length is most common? a. 8cm b. 27cm c. 28 cm d. 5 cm</p><p>29. What is the range in the data? a. 31 cm b. 10cm c. 21cm d. 1cm ______30. A neutron is a negatively charged particle. a. True b. False 31. The atom is the basic unit of all living things. a. True b. False 32. The sum of the mass of protons plus neutrons is the atomic number. a. True b. False 33. Atomic number is the number of electrons in an atom. a. True b. False </p>