1.(3) The line of longest wavelength in visible light for the emission spectrum of hydrogen, 656nm...
1.(3) The line of longest wavelength in visible light for the emission spectrum of hydrogen, 656nm (Balmer series), would correspond to what electronic transition?
2.(7) Explain the wave-particle duality of matter and light. Why don’t we notice this effect in everyday activities? What do electrons behave most like in an atom?
3.(8) What is the approximate range, in nm, for visible light? Which end contains photons of the highest energy? What is the mathematical relationship between energy of a photon and its wavelength (λ)? Be careful here, I asked for wavelength, not frequency.
4.(7) In the Bohr model of the atom, there is a significant problem having an electron in orbit around the nucleus. What is this problem? This problem is observed in accelerators such as synchrotrons. How does the Schrodinger, i.e. modern, version of quantum mechanics deal with this problem?
Homework Answers
SOLN 1
The Balmer series referes to
the series of emission spectrum of
hydrogen atom in which electron transitions takes place from higher
levels to energy level with n=2
Balmer formula
From the Balmer equation the value of n2 that gives the greatest wavelength (λ) will be the smallest value of n2, which is (n2=3) for Balmer series.
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