Protons,Electrons and Neutrons

This page is an exercise in relating the number of protons, electrons and neutrons for an atom or monoatomic ion. When it loads (and when you press "Refresh"), a symbol will appear in the first cell and several other cells will have values. Fill in the empty cells (all of the values are integers) and press "Check Ans." Results appear in the smaller table. You need a periodic table or a list of the elements to use this page. If the charge is positive, just enter the integer. If it's negative make sure you include the sign.
Symbol Protons Mass# Charge Electrons Neutrons

Results Total Done Total Correct

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Drill and Practice Problems
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Chemistry 145
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Chemistry 146

These problems are provided courtesy of Prof. George Wiger ( at California State University, Dominguez Hills.

Please direct any questions about this site to Please send comments or suggestions to

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

This page has been accessed 696 times since 9/1 /98 .

Last Updated: Tuesday, September 01, 1998 11:12:46 AM