The table shows the average population of two competing weeds over a square meter of ground in a Georgia field. The table also gives the average rainfall for five successive years. What percentage of the weeds growing in 1984 were chicory

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided