third way to determine how many equivalent protons there are is to look at the atom attached to. the proton (usually a carbon) and observe what that atom is bonded to, and then the atom bonded. to that, all the way until a difference is observed.
The goal of imperialism is  to exercise economic and political control over a dependent territory. Such control is often accomplished through settlement, sovereignty or less direct methods.
The Europeans took over because Africa was rich in raw materials, they wanted power, and they thought their culture was superior. The driving force behind imperialism was need for resources, political competition, and technological advances. One driving force behind imperialism was need for natural resources. Document E uses a bar graph to show imports and exports in 1854, and 1900 between Great Britain and South Saharan Africa.