6. Elements in column (group) 18 (8A) are called the and the outermost electrons are found in the p sublevel. Color these elements a different color and reference this group on the legend.

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons