Posted by amanda on Wednesday, October 10, 2012 at 7:52pm.
Isotopes. They have the same atomic number (same number of protons), a different number of neutrons (mass number is different), and the same number of electrons.
As for the Apeman I never heard of it; however, I googled atomic structure by apeman and it returned this link. Apparently it is a presentation of the periodic table by a talking ape.
Hope this helps.
http://www.slideshare.net/skyearth/apeman-and-atomic-theory
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