Nitrogen occurs in nature in the form of two isotopes with atomic mass 14 and 15 respectively. If average atomic mass of nitrogen is 14.0067, what is the % abundabce of the two isotopes ?

Explanation

To solve the problem of finding the percentage abundance of the two isotopes of nitrogen with atomic masses 14 and 15, we can follow these steps:

### Step-by-Step Solution:

1. **Define Variables:**
Let the percentage abundance of the isotope with atomic mass 14 be \( x \% \). Consequently, the percentage abundance of the isotope with atomic mass 15 will be \( (100 - x) \% \).

2. **Set Up the Equation:**
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