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Old 08-18-2015, 12:59 AM   #1
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Default Aren't The Nucleon Number And The Mass Number The Same?

Hello, I'm doing a chemistry problem which has asked me to write the symbol for Carbon-12, Carbon-13, and Carbon-14, with "nucleon and mass numbers".

I am totally confused by this! Is there a difference in how you write them with the symbol? Or is this some workbook mistake?
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