Question

-Carbon with mass number 12 and 14 are present
in the ratio of 3.1. Find the average mass
number of carbon​

Answer 1

Answer:

Average Atomic Mass

Since many elements have a number of isotopes, chemists use average

atomic mass. On the periodic table the mass of carbon is reported as

12.011 amu. No single carbon atom has a mass of 12.011, but in a handful

of C atoms the average mass of a carbon atom is 12.011.