Some elements are highly because their outermost energy levels are only partially filled.

This is a picture of workers in a factory. why was this picture most likely taken? to advertise that kids could get jobs to expose the horrors of child labor to show pride in children at work to show that night workers were needed o

What does the document of the birtish octopus is an uderlying cause of the world war 1

Who was the first african american since reconstruction to be elected to congress from georgia?