Kalzium can show you which elements are where with regard to their Periodic “block” and “group”, their behavior with acid and which state of matter (i.e. solid/liquid/vapor) they are in at a given temperature.
Color schemes can be changed in the → menu, toolbar drop-down list, or View tab of the Sidebar.
: all the elements have the same color. You can change the default color by choosing → and going to the Schemes page.
: displays a color for each block.
: displays icons for each element.
: represents each of the nine families with a color.
: displays a color for each group. A group is a vertical column in the periodic table of the elements. There are 18 groups in the standard periodic table. Elements in a group have similar configurations of their valence shell electrons, which gives them similar properties.
: Nice colors without meaning. (From the Open Babel project).