If calcium has the atomic number 20 mass number 40, both protons and neutrons are 20 would that make its electrons 18 or 22?

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe