Answer:
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
Explanation:
Feudalism was the dominant social system in Medieval Europe. Under Feudalism, the king owned all of the land and distributed it amongst lords who gave an oath of fidelity, or loyalty.
It is the economic philosophy that guided U.S. national economic policy from the earliest days of the republic through the civil war to the early 1970s. It built the U.S. from an agrarian frontier society to the world's largest economy and the greatest industrial power.
