Chapter 6 (Starlight & Atoms) Quiz

Chapter 6 (Starlight & Atoms) Quiz - Astronomy 101:...

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Astronomy 101: Chapter 6: Starlight and Atoms 1. Which subatomic particle has a positive charge? a. The electron. b. The proton. c. The neutron. d. Both a and b above. e. Both a and c above. 2. Which of the following is true of an atomic nucleus? a. It contains more than 99.9% of an atom's mass. b. It contains all of an atom's positive charge. c. It contains all of the electrons. d. Both a and b above. e. All of the above. 3. In a molecule, two or more atoms are bonded together by sharing: a. protons. b. neutrons. c. electrons. d. both a and c above. e. both b and c above. 4. An electron's binding energy is the energy that: a. binds it to the atom. b. is needed to remove it from the atom. c. keeps it from falling into the nucleus. d. both a and b above. e. both a and c above. 5. An atom that is ionized must have: a. more neutrons than protons. b. more protons than neutrons. c. more electrons than protons. d. more protons than electrons. e. either c or d above.
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6. The temperature of a gas is a measure of the: a. total amount of internal energy in the gas. b. average speed of its particles. c. amount of heat that flows out of the gas. d. total number of atoms in the gas. e. density of the gas. 7. Which of the following statements is true about the Celsius and Kelvin (Absolute) temperature scales?
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Chapter 6 (Starlight & Atoms) Quiz - Astronomy 101:...

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