Observed [X/Mg] vs. [Mg/H] abundance ratios for the α- and odd-Z elements from MWM DR19 throughout the entire galactocentric region between 3 and 15 kpc compared with the best-fit CE model results (dotted curves) for all species. The color coding represents the number of stars on the observational chemical map of the MW, and gray squares represent bins containing a single star. Note: ⊗ drives caution to V because of high observational uncertainty.