Unit 2 Quiz: Elements, Atoms, And Ions

19 Questions | Total Attempts: 272

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Atom Quizzes & Trivia

This is a True / False quiz. In the spaces provided, type T if a statement is true, or F if a statement is false.


Questions and Answers
  • 1. 
    Elements are pure substances _________________
  • 2. 
    Water is an element ______________
  • 3. 
    Chlorine is an element ___________________
  • 4. 
    The law of constant composition says that the composition of compounds changes according to the place of origin.  __________________
  • 5. 
    A chemical formula describes the shapes of the compound
  • 6. 
    The nucleus of an atom contains protons and neutrons ________________
  • 7. 
    Electrons are responsible for chemical properties of an atom __________
  • 8. 
    The atomic number of an atom is the sum of the protons and neutrons present in the nucleus of that atom. ___________
  • 9. 
    Chlorine has the atomic number of 17 _____________
  • 10. 
    A chart containing all of the known elements arranged in an organized fashion is called the periodic table ______________
  • 11. 
    Nonmetals can be pulled into wires and conduct electricity. _______________
  • 12. 
    Silicon, arsenic and germanium represent metals _________________
  • 13. 
    Nitrogen, oxygen and hydrogen exist as diatomic molecules ________________.
  • 14. 
    A negative ion is called a cation __________
  • 15. 
    The size of an atom increases when it obtains one or more electrons forming an ion. _______
  • 16. 
    In an ionic compound, both anions and cations must be present to form a molecule. ________
  • 17. 
    The formula for the compound containing Ba2+ and O2- is BaO _________.
  • 18. 
    The formula for the compound containing Al3+ and S2- is Al2S3 _______________
  • 19. 
    The formula for the compound containing K+ and P3- is KP3 ___________
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