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

Answer 1

The copper nucleus contains #29# protons, so we have #""^63Cu#.

How did I find out that the nucleus of copper has 29 protons? The superscript is the total of protons and neutrons, which are massive nuclear particles with either a positive or neutral charge.

If I have a neutral atom of #""^63Cu#, how many electrons are there?

How would I write the isotope if there were thirty-five neutrons?

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Answer 2

Noah Aldrich

With 34 neutrons, the copper isotope would be represented by the notation [^{63}_{29}\text{Cu}].

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.