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chemfigThis feature in other tools
Charges, isotopes and atom labels in chemfig
Carbon isotope and positively charged nitrogen labels.

- What we checked
- Charges, isotopes and arbitrary element labels can be set on atoms.
- Result
- Yes, tested by running it: Carbon isotope and positive nitrogen charge rendered. Yes, tested by running it. Carbon isotope and positive nitrogen charge rendered.
- Version we tested
- 1.82, on macOS 27.0.1 arm64
- Manual
- tug.ctan.org