Chemistry · Some Basic Concepts of Chemistry

If the average atomic mass of carbon is calculated using the isotopes \( ^{12}\text{C} \) (98.892%, 12 u), \( ^{13}\text{C} \) (1.108%, 13.00335 u), and \( ^{14}\text{C} \) (\( 2 \times 10^{-10}\%, 14.00317 \text{ u} \)), what is the resulting average atomic mass of carbon?

1. A
   \( 13.002 \text{ u} \)
2. B
   \( 12.115 \text{ u} \)
3. C
   \( 11.985 \text{ u} \)
4. D
   \( 12.011 \text{ u} \)