What do two different neutral isotopes of the same element have in common? a: atomic numberb: atomic mass c: nuclear mass d: nuclear number

Isotopes are atoms of the same element that have the same number of nucleic protons, but different numbers of nucleic neutrons. This has the effect that they have a different mass number. However they have the same atomic number because that is a measure of how many protons are in the nucleus
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Writing, you can revisit previous parts of the lesson by returning to the course map. be sure to refer to the lab’s student guide, which you can find on the first page of the lab experiment activity