As we know Atomic mass of an element is compared with one twelfth of mass of carbon 12 Why ? (Give reason Minimum two sentences)
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Explanation:
We needed a unit to measure atomic mass. So we took the weight of one carbon 12 atom as 12u. So 1u = 1/12 of the mass of carbon 12 atom.
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Answer:
Some of the mass of the atom gets converted into binding energy, so the mass of the entire nucleus would actually be less than the mass of each individual proton and neutron added together. This is why the mass of carbon-12 is 12 amu, not 12.09.
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