Question

nitrogen has two naturally occuring isotopes ,N-14 and N-15 the atomic mass of nitrogen is 14.007 amu.which isotope is more aboundant in nature? explain berifly​

Answer 1

Answer:

look down

Explanation:

Isotope having mass of 14amu is more abundant because average atomic mass 14.007 is more closer to 14. So the abundance of 14amu isotope must be more.

However you can calculate abundance using formula

M1X1+M2X2/100 = 14.007

substitue X2 as 100- X1 as total abundance is always 100. It gives abundance of 14amu isotope as 99.3 and of 15amu isotope as 0.7 percent.

Answer 2

Answer:

The isotope N-14 is more abundant in nature.

Explanation:

The unorthodox method of doing this is checking that the average atomic mass is nearer to which isotopic mass.

By using formula we can also find this:

Average atomic mass = ∑(Atomic mass of an isotope) × (Fractional distillation)