Question

What is meant by atomic mass? Explain how the atomic number and mass number of carbon are 6 and 12respectively.​

Answer 1

hey mate here is your answer.....

''The mass number (symbol A, from the German word Atomgewichte (atomic weight), also called atomic mass number or nucleon number, is the totalnumber of protons and neutrons (together known as nucleons) in anatomic nucleus. ... The mass numberis different for each different isotope of a chemical element.''

&

''Carbon-12 is one of the most abundant isotopes with 6 protons and 6 neutrons therefore mass number would be 12. C-13 is another isotope of carbon which contains 6 protons and 7neutrons therefore the mass number would be 13.''

hope it helps you....

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