Question

calculate the relative population of sodium atoms in sodium lamp in the excited state and the ground state at temperature of 250 degree celsius​

Answer 1

Answer:

Fluorescence and phosphorescence are types of molecular luminescence methods. A molecule of analyte absorbs a photon and excites a species. The emission spectrum can provide qualitative and quantitative analysis. The term fluorescence and phosphorescence are usually referred as photoluminescence because both are alike in excitation brought by absorption of a photon. Fluorescence differs from phosphorescence in that the electronic energy transition that is responsible for fluorescence does not change in electron spin, which results in short-live electrons (<10-5 s) in the excited state of fluorescence. In phosphorescence, there is

Answer 2

Relative population of sodium atoms in sodium lamp:

Explanation:

• Since a sodium has 11 electrons, and they are in an orbit so one of the electron is most likely to accept and emit energy.  
• Due to high or low pressure, valence electron of the sodium atoms to excite to higher energy levels.
• These excited electrons emit light of wavelength of 590 nano meters.
• This wavelength depicts the yellow light.