Answer
The mass spectrum of Gallium is represented in the following graph:
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Work Step by Step
In a mass spectrum, the abundance of the most occurring isotope is set to 100%. Find the constant that we should multiply the abundances so the highest one is equal to 100%
$$60.108 \times x = 100$$ $$x = \frac{100}{60.108} = 1.66367206$$
- Multiply the other abundance by this number.
$$39.892 \times 1.66367206 \approx 66.4 \%$$
Therefore, the intensity of Gallium-69 is equal to 100%, and the same for Gallium-71 is about 66.4%
Sketch a graph with these values (see image).