A sample of chromium contains four isotopes. The table below shows the mass number and percentage abundance of each isotope.
| Isotope of chromium | Percentage abundance (%) |
|---|---|
| Cr-50 | 4 |
| Cr-52 | 84 |
| Cr-53 | 10 |
| Cr-54 | 2 |
Calculate the relative atomic mass (ArA_rAr) of chromium in this sample. Give your answer to 1 decimal place.
