necolewiggins135 necolewiggins135

21-06-2022
Chemistry

contestada

The percentage of the X-21 isotope is 87.99 % What is the contribution (in amu) to the weighted average from the X-21 isotope, which has a mass of 21.00 amu

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Medunno13 Medunno13

23-06-2022

[tex](21.00)(0.8799) \approx \boxed{18.48 \text{ amu (to 4 sf)}}[/tex]

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