Question

Define mass number and atomic number

Answer 1

hi....The mass number (symbol A), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus.

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Answer 2

hello answer is here mass number the total number of nucleus like number of proton and neutron present in the nucleus of an atom is known as mass number and then mass number is represented by A atomic number the number of proton present in an atom is known as atomic number and atomic number is represented Z