Magnesium has a charge of +2 and fluorine has a charge of -1. how do you determine the number of each ion that will be present in the in the ionic compound?

Flourine must have 2.

Explanation:

The compound must be equaled out. There would be two Flourine atoms becuase -1 x 2= -2

-2+2=0

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.