Calcium is the next element after potassium, and its additional electron completes the 4s subshell.
The dataset supporting the conclusions of the present article is included within the article and its additional files.
The data sets supporting the results of this article are included within the article and its additional files.
The dataset(s) supporting the conclusions of this article is (are) included within the article (and its Additional file 1).
The data supporting the conclusions of this article are included within the article (and its additional files).
All data generated or analyzed during this study are included in this article and its Additional files.
All data generated or analyzed during this study are included in this article and its Additional file 1.
The datasets supporting the conclusions of this article are included within the article and its additional supplementary files.
The dataset(s) supporting the conclusions of this article is included within the article (and its additional file(s)).
The datasets supporting the conclusions of this article are included within the article and its additional references.
The 3D design described in this article is included within the article (and its Additional file 1 and 2).
