A Carbon atom has three isotopes - C-12 , C-13 and C-14 ?
What is the relation between the isotopes and an atom of carbon?

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Solution

Isotopes are atoms with same atomic number and different mass number. Each isotope exist in different % abundance and they contribute for the atomic mass of the carbon.
$A v e r a g e a t o m i c m a s s = \frac{x_{1} M_{1} + x_{2} M_{2} + x_{3} M_{3}}{x_{1} + x_{2} + x_{3}} x_{1}, x_{2,} x_{3} a r e t h e % a b u n d a n c e M_{1}, M_{2}, M_{3} a r e t h e a t o m i c m a s s$
The average atomic mass of carbon is found as 12.011 amu.

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A Carbon atom has three isotopes - C-12 , C-13 and C-14 ? What is the relation between the isotopes and an atom of carbon?

A Carbon atom has three isotopes - C-12 , C-13 and C-14 ?
What is the relation between the isotopes and an atom of carbon?