Testbank to accompany Chemistry 4e by Blackman et al

Chapter 1 The atom True/False questions 1. Removing an electron from a sodium atom (Na) gives the Na – anion. a. True *b. False Answer: b Learning objective 1.1 - define atoms, molecules, ions, elements and compounds. 2. Adding an electron to a fluorine atom (F) gives the F– anion. *a. True b. False Answer: a Learning objective 1.1 - define atoms, molecules, ions, elements and compounds. 3. In a chemical reaction, no detectable gain or loss of mass occurs. *a. True b. False Answer: a Learning objective 1.2 - explain how the concept of atoms developed. 4. In Dalton’s atomic theory, atoms are destructible and can be broken down into separate parts. a. True *b. False Answer: b Learning objective 1.2 - explain how the concept of atoms developed. Chemistry, 4th Edition © John Wiley & Sons Australia, Ltd 2019 Chapter 1 The atom 2 5. In a given chemical compound, the elements are always combined in the same proportions by mass. *a. True b. False Answer: a Learning objective 1.2 - explain how the concept of atoms developed. 6. The charge of an electron was determined by Ernest Rutherford. a. True *b. False Answer: b Learning objective 1.3 - describe the structure of the atom. 7. Protons are positively charged subatomic particles. *a. True b. False Answer: a Learning objective 1.3 - describe the structure of the atom. 8. Neutrons are negatively charged subatomic particles. a. True *b. False Answer: b Learning objective 1.3 - describe the structure of the atom. 9. All atoms possess the same number of protons, but are distinguished by the difference in the number of electrons. a. True *b. False Answer: b Learning objective 1.3 - describe the structure of the atom. Chemistry, 4th Edition © John Wiley & Sons Australia, Ltd 2019 Chapter 1 The atom 3 10. All carbon atoms possess the same number of protons, but are distinguished by the difference in the number of neutrons. *a. True b. False Answer: a Learning objective 1.3 - describe the structure of the atom. 11. All carbon atoms possess the same atomic number, but are distinguished by the difference in the number of protons. a. True *b. False Answer: b Learning objective 1.3 - describe the structure of the atom. 12. Mendeleev devised his periodic table by ordering the elements according to their atomic number. a. True *b. False Answer: b Learning objective 1.4 - explain the basis of the periodic table of the elements.