Question

It atomic mass same for all elements or is it different atoms? Explain​

Answer 1

An element's mass number (A) is the sum of the number of protons and the number of neutrons. ... Protons and neutrons both weigh about one atomic mass unit or amu. Isotopes of the same element will have the same atomic number but different mass numbers.

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Answer 2

Answer:

am element maas number (A) is the sum of the numbers of protons and the the numbers of neutrons... protons and neutrons both weigh about the atomic mass unit or amu. isotopes of the same element will have the same atomic numbers but different mass numbers.

Explanation:

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