what is meant by atomic mass number explain how the atomic number and mass number of carbon are 6 and 12 respectively
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atomic number and mass numbers are 2 different things.
atomic number is the number of protons or electrons( if neutral ) in an atom.
atomic mass is the mass possessed by an atom.
since electron has negligible mass. mass number is the sum of proton and neutron because electron has negligible mass. This is the general difference between atomic number and mass number.
so in the case of carbon, it's atomic number is 6.
so proton number = electron number = neutron.( if it is not an isotope.)
therefore atomic number = 6
mass number = 6+6 = 12
this atom is called C12. there are many other forms of carbon like C16, C20.
atomic number is the number of protons or electrons( if neutral ) in an atom.
atomic mass is the mass possessed by an atom.
since electron has negligible mass. mass number is the sum of proton and neutron because electron has negligible mass. This is the general difference between atomic number and mass number.
so in the case of carbon, it's atomic number is 6.
so proton number = electron number = neutron.( if it is not an isotope.)
therefore atomic number = 6
mass number = 6+6 = 12
this atom is called C12. there are many other forms of carbon like C16, C20.
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