Question

How is atomic mass calculated ​

Answer 1

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For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

Answer 2

Explanation:

to calculate the atomic mass of a single atom of an element ,add of the mass of protons and neutrons .example :

• find the atomic mass of an isotope of carbon that has 7 neutrons you can see from the periodic table that carbon has an atomic number of 6 which is its number of protons .

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