Answer :
Answer: The average atomic mass of abdicinium is 40.8676 amu
Explanation:
Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.
Formula used to calculate average atomic mass follows:
[tex]\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i[/tex] .....(1)
- For isotope 1:
Mass of isotope 1 = 40.005 amu
Percentage abundance of isotope 1 = 14.00 %
Fractional abundance of isotope 1 = 0.1400
- For isotope 2:
Mass of isotope 2 = 41.008 amu
Percentage abundance of isotope 2 = 86.00 %
Fractional abundance of isotope 2 = 0.8600
Putting values in equation 1, we get:
[tex]\text{Average atomic mass of abdicinium}=[(40.005\times 0.1400)+(41.008\times 0.8600)]\\\\\text{Average atomic mass of abdicinium}=40.8676amu[/tex]
Hence, the average atomic mass of abdicinium is 40.8676 amu