When a sample is vaporized and injected into a mass spectrometer, the following results are obtained.
| Mass of Atom (amu) | % Abundance | 
| 143.911995 | 3.07 | 
| 146.914893 | 14.99 | 
| 147.914818 | 11.24 | 
| 148.917180 | 13.82 | 
| 149.917271 | 7.38 | 
| 151.919728 | 26.75 | 
| 153.922205 | 22.75 | 
Calculate the atomic mass using the weighted average mass method and identify the element. Write a 2-to-3-page report discussing the data and the calculations performed.