How are atomic number and mass number related to the number of protons and neutrons inside the nucleus of an atom?
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Atomic number is equal to the number of protons.
Atomic mass is equal to the sum of number proton and number neutron .
Atomic mass is equal to the sum of number proton and number neutron .
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Atomic no. means the no. of proton or neutron situated in a nucleus. i.e. p+ or e- = atomic no.
atomic mass no. means protons + neutrons in the nucleus. Electron does not have a mass hence all the mass of atom depends upon proton and neutrons. i.e. atomic mass no. = p+ and n.
atomic mass no. means protons + neutrons in the nucleus. Electron does not have a mass hence all the mass of atom depends upon proton and neutrons. i.e. atomic mass no. = p+ and n.
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