(Answered) Can anyone explain this scenario step by step i realy need

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Can anyone explain this scenario (Step By Step)? I realy need to understand every step in order to succeed in my chemistry course.

An unknown metal is observed to react with nitric acid with the release of hydrogen gas. A laboratory technician performs a mass spectrometry analysis of the unreacted element to discover its identity. The data table shows the results of this analysis.

MASS (amu) ABUNDANCE (%)

23.985 78.99

24.986 10.00

25.982 11.01

1.How can I Calculate the part of the element's atomic mass from each type of isotope in the sample?

2.According to the data, what is the estimated atomic mass of the element? What is the element?

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