openmc.data.atomic_weight¶

openmc.data.atomic_weight(element)[source]¶

Return atomic weight of an element in atomic mass units.

Computes an average of the atomic mass of each of element’s naturally occurring isotopes weighted by their relative abundance.

Parameters:	element (str) – Element symbol (e.g., ‘H’) or name (e.g., ‘helium’)
Returns:	Atomic weight of element in [amu]
Return type:	float