Answer:
D.
Explanation:
Force is strength and energy as an attribute of physical action or movement.
They typically represents different wavelengths of element due to its energy emission in the form of visible light. When an electron of that particular element move from a higher energy level down to a lower energy level, it gives off energy in the form of photon emission. Atom of a certain element has a unique electron arrangement thus it can considered that particular element's spectrum is unique.
Solid particles hope this helped!
Potential energy is energy stored in an object. kinetic energy is energy of motion