Which of the following measurements contains two significant figures? a. 0.0004 00 l b. 0.0004 04 l c. 0. 44 l d. 0.0004 40 l

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