Final answer:
Mercury is the chemical element that gets stimulated to make a fluorescent light bulb glow.
Step-by-step explanation:
A fluorescent light bulb gets stimulated by mercury to produce light. When an electric current is passed through the bulb, the electrons collide with atoms of mercury vapor in the tube, causing the mercury to become excited to a high-energy state. When the electrons in the mercury atoms return to lower energy levels, they emit ultraviolet photons. These ultraviolet photons then strike a phosphor-coated screen on the inner wall of the bulb, which absorbs the photons and emits visible light. The phosphor coating inside the bulb then absorbs the UV light and re-emits it as visible light, creating the illumination produced by the fluorescent bulb.