Answer:
D I think the answer is D for this question
Elements that there Electrons equal a multiple of 8 because then they become a noble gas.
Umm. . . Could you list some options? :)
The subscript 2 in the formula o2 indicates that there are 2 atoms of the element oxygen, represented by the symbol "O." The subscript to the right of the symbol tells how many atoms are present of that element.
