SUMMARY According to https://github.com/KDE/kalzium/blob/a147c68a4eb8bbeebe286b77dec15e4e1375049f/src/elementdataviewer.cpp#L451 , there are "Alkalie Metal" and "Alkaline earth metals". The former one should contain elements such as Li, Na, K and Rb. The latter one should contain elements such as Be, Mg, Ca and Sr. However, in https://github.com/KDE/kalzium/blob/b8060ea167325609425587331d05d39959ba9d97/src/kalziumschemetype.cpp#L298-L301 , the source code matched Prefs::alkalie() with translatable string "Alkaline" as well as Prefs::alkaline() with translatable string "Alkalie Metal". I'm not sure if that is a typo (it should be). This mismatch will also caused great confusion to the translators. STEPS TO REPRODUCE 1. View the source code above. OBSERVED RESULT Pref::alkalie() matches with "Alkaline"; Pref::alkaline() matches with "Alkalie Metal"; EXPECTED RESULT Pref::alkalie() matches with "Alkalie Metal"; Pref::alkaline() matches with "Alkaline Earch Metal"; SOFTWARE/OS VERSIONS Any Kalzium release, no later than v2.5.0. Any OS. ADDITIONAL INFORMATION N/A