Most of the water reaching Earth will keep moving downward into the ground to fill the aquifer, an area where all the spaces are filled with water. At the top point of this saturated zone you see the water table. Some of the underground blue arrows show how, in this situation, some water moves towards the stream. Explain how this could happen.

c

explanation:

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.