I think the answer the students average is 15 km?
You always adjust numbers and it will be before the element
so you Neva add or change a subscript
I think it's Sodium Sulfide, because Na2S contains one Sodium and two Sulfur. Plus Sulfide<span> is used to describe any of three types of chemical compounds that contain sulfur.</span>
Answer:
sodium atoms are much larger than chlorine atoms but in case of sodium ions they are much smaller thqn chlorine ions
18 electrons. With a -2 charge, that means it gains two electrons.
