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What is the difference between the atomic number and the mass of an element?

The atomic number of an element is the number of protons or electrons present, since the number of protons in an element is equal to the number of electrons. On the other hand, the mass number is the sum of the protons and the neutrons present in the element.

Rebecca K. GCSE Biology tutor, A Level Biology tutor

2 years ago

Answered by Rebecca, a GCSE Chemistry tutor with MyTutor


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Rebecca K. GCSE Biology tutor, A Level Biology tutor
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