Question

none, none notwo atoms have the same relative atomic mass but different chemical properties which row about the proton and neutron numbers of these atoms is correct

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And Tanvi too have so many ids
(ー_ー゛)​

Answer 1

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Atomic mass can be defined as the total mass of one atom of any given element. The unit of atomic mass is called the unified atomic mass unit (denoted by 'u'). Most of the atomic mass of a substance is made up of protons and neutrons. Therefore, it is almost equal to its mass number.

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Answer 2

Answer:

Atomic mass can be defined as the total mass of one atom of any given element. The unit of atomic mass is called the unified atomic mass unit (denoted by 'u').