| Type | Get Method | Set Method | |
| Atomic Number | int | GetAtomicNum | SetAtomicNum |
| Formal Charge | int | GetFormalCharge | SetFormalCharge |
| Implicit Hydrogen Count | int | GetImplicitHCount | SetImplicitHCount |
| Isotopic Mass | int | GetIsotope | SetIsotope |
| Partial Charge | float | GetPartialCharge | SetPartialCharge |
| Atomic Hybridization | int GetHyb | SetHyb | |
| Integer Atom Type | int | GetIntType | SetIntType |
| Atom Name | string | GetName | SetName |
| Atom Type Name | string | GetType | SetType |
| Reaction Role | int | GetRxnRole | SetRxnRole |
| Reaction Map Index | int | GetMapIdx | SetMapIdx |
| Ring Membership | 0 or 1 | IsInRing | SetInRing |
| Symmetry Class | int | GetSymmetryClass | SetSymmetryClass |
| Aromaticity | 0 or 1 | IsAromatic | SetAromatic |