Convert default radii to bohr when input units are not angstrom

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (f0d0560) 69.25% compared to head (b9e76c3) 69.25%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #473 +/- ## ======================================= Coverage 69.25% 69.25% ======================================= Files 179 179 Lines 14975 14975 ======================================= Hits 10371 10371 Misses 4604 4604 ```

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