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It takes 486.0 kJ/mol to convert sodium atoms to Na+ ions. Sodium atoms absorb and emit...

It takes 486.0 kJ/mol to convert sodium atoms to Na+ ions. Sodium atoms absorb and emit light of wavelengths 589.6 and 590.0 nm. Calculate the energy of the 589.6 nm light in kilojoules per mole.

15. If a sodium atom has already absorbed a 590.0 nm photon, what is the wavelength of the second photon a sodium atom must absorb to remove an electron?

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