OEGetIsotopicWeight

OEGetIsotopicWeight(elemno: int, mass: int) -> float

Returns the atomic weight for a specific isotope. The isotope is specified by the atomic number (‘elemno’) and the atomic mass (‘mass’).

To get the average atomic weight of an element, based upon typically occurring abundances of its natural isotopes, use the OEGetAverageWeight function.

See also

• OEGetAverageWeight function