Fluorine has seven electrons in its outer energy level. according to the octet rule,

According to the octet rule, The element would want to take another electron to have eight electrons on the outer shell.

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.