Atomic Number and Mass Each element has its own unique properties. Each contains a different number of protons and neutrons, giving it its own atomic number and mass number. The atomic number of an element is equal to the number of protons that element contains.
Explanation: Waves move in that kind of up and down motion, a circuit is a straight line with energy flowing through it, a magnet is a pulling effect and a prism is a shape, not necessarily a motion.
