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QUESTION
A copper atom with 34 neutrons. What is the atomic symbol? Express your answer as an isotope.
The copper nucleus contains ##29## protons, so we have ##""^63Cu##.
The superscript is the sum of protons and neutrons, massive nuclear particles with a positive or a neutral charge. How did I know that copper has 29 protons in its nucleus?
If I have a neutral atom of ##""^63Cu##, how many electrons are there?
IF there were 35 neutrons, how would I write the isotope?
