Which material emits a line spectrum?   Question 1 options:   salt water   fluorescent bulb   helium gas

Types of Spectra" pg. 63, question 2 Vhat type of spectrum is produced when the light emitted directly from a hot, low density cloud of gas passes through a prism? continuous spectrum emission spectrum absorption spectrum

Change in energy and wavelength 1st peak (Start from right) Red region 2nd peak Light blue-green region 3rd peak Blue-purple region 4th peak Dark purple region Wavelength (nm) 656.6 485.3 436.6 409.7 no 2 2 2 n₂ Ephoton (J) Table view List view Eone mole photon (kJ/mol)

b) The visible spectrum of mercury is shown below: 200, 700 Mercury 280Hg 80¹ 623,4 [615,2 579 577 600 56 1546,1 (.. |502,5 ch 500 435,81 Explain what physical quantity is being measured on the scale and give the units. 407,8404,7 Explain the similarities and differences of the photons that give rise to the different bands on the spectrum. 1 400 R LAVEN

Calculate the frequency of radiation for sodium vapor lamp used in public lighting systems that has a wavelength of 599nm. If the lamp gives off yellow light, what color of light is primarily being absorbed? Calculate the energy of one photon for this wavelength.