An isotope of copper contains 34 neutrons. What is its notation?

1 Answer
Sep 4, 2016

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?