Chemical Nomenclature Problem Set

This problem set was developed by S.E. Van Bramer for Chemistry 145 at Widener University.


  1. Technetium (Tc) was the first synthetically produced element. Technetium (the word comes from the Greek word for artificial) was first produced by Perries and Serge in 1937 in Berkely, California, by bombarding a molybedenum plate with 2H nuclei. Elemental technetium is produced from ammonium pertechnetate. How many protons, neutrons, and electrons are in the nuclei of 98Tc and 99Tc? What is the formula of ammonium pertechnenate?


  2. How many protons, neutrons, and electrons are present in each of the following atoms or ions?
    1. 24Mg
    2. 24Mg2+
    3. 59Co2+
    4. 59Co3+
    5. 59Co
    6. 79Se
    7. 79Se2-
    8. 63Ni
    9. 59Ni2+


  3. The formulas and common names for several substances are given below. Give the systematic names for thses substances.

    Common Name Chemical Formula
    a. Sugar of lead Pb(C2H3O2)2
    b. Blue vitrol CuSO4
    c. Epsom salts MgSO4
    d. Milk of magnesiaMg(OH)2
    e. Gypsum CaSO4
    f. Laughing gas N2O


  4. Write the formula for each of the following compounds:

    1. Sulfur difluoride
    2. Sulfur hexafluoride
    3. Sodium dihydrogen phosphate
    4. Lithium nitride
    5. Chromium (III) carbonate
    6. Tin (II) fluoride
    7. Ammonium acetate
    8. Ammonium hydrogen sulfate
    9. Cobalt (III) nitrate
    10. Mercury (I) chloride
    11. Potassium chlorate
    12. Sodium hydride


  5. Name each of the following compounds. Where appropriate give both common and systematic names.

    1. NaCl
    2. RbBr
    3. CsF
    4. AlI3
    5. HI
    6. NO
    7. NF3
    8. N2F4
    9. N2Cl2
    10. SiF4
    11. H2Se
    12. HNO3
    13. HNO2
    14. H3PO4
    15. H3PO3
    16. NaHSO4
    17. Ca(HSO3)2
    18. Ru(NO3)3
    19. V2O5

    /svb/pset/nom_a_an.html


    Please send comments or suggestions to svanbram@science.widener.edu

    Scott Van Bramer
    Department of Chemistry
    Widener University
    Chester, PA 19013

    © copyright 1996, S.E. Van Bramer
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    Last Updated: Saturday, May 18, 1996