Sulfur has 16 electrons. when it combines with magnesium. it acquires a -2 charge. how many electrons does it have now?

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?