metallurgy.ratios.shell_valence_electron_concentration_ratio(alloy: Alloy | str | dict, period: Number | None = None, valence_electrons: Number | None = None) → Number | None | list[Number | None][source]

Returns the ratio between shell number and valence electron concentration of an alloy.

Parameters:
alloy : mg.Alloy, str, dict

The alloy for which to calculate the ratio.

period : Number

The effective period of the alloy.

valence_electrons : Number

The effective number of valence electrons of the alloy.

Last update: Jun 08, 2023