Calculate the ‘nucleon number’

You are working in a laboratory, and a series of samples is received which you are
asked to identify. The samples are provided by an organisation which does not have
specialised chemistry knowledge, so your essay should include significant
information to enable them to understand how you have identified the samples, as
well as an explanation of the basic structure of an atom. Through experimentation
you discover that the samples have the following atomic numbers:
a) 9
b) 36
c) 47
d) 56
You must explain the concepts of ‘mass number’ and ‘relative atomic mass’, and
explain what the difference is between them.
Finally, you have been asked to calculate the ‘nucleon number’ for each of these
samples and explain what this means.

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