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प्रश्न
What value has been given to the mass of this reference atom ?
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उत्तर
Carbon-12 atom has been given a mass of exactly 12 units (`""^12"_6C` has six protons and six neutrons).
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संबंधित प्रश्न
The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes `""_8^16X" and """_8^18X` in the sample?
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