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 you press "Refresh", an elemental 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.