Q. When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in:
Answer: Emission spectra
Notes: When a metal atom is strongly heated, its electrons absorb the heat energy and jump to a higher energy level. When the electron returns to its original position, it gives off the energy it had absorbed in the form of light. The result of all these jumps is to produce what is called an emission spectrum. It appears as a set of coloured lines that correspond to the energy the electron released at each stage of its fall back to its original state.