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OpenStudy (anonymous):

Are 63/28x and 62/29x isotopes of the same element? Explain your answer.

OpenStudy (stefrheart):

Is 63 and 62 the A?

OpenStudy (anonymous):

I'm not entirely sure, this is the problem and what it looks like

OpenStudy (stefrheart):

Ah now i understand so do you know what the top numbers are?

OpenStudy (anonymous):

I don't actually think they are relevant

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