A hydrogen atom initially in the n = 6 state decays to the n = 2 state. The emitted photon is detected in a photographic plate. What is the wavelength of the detected photon?
The lowest level energy state of hydrogen is -13.6 eV. (h = 6.626 10-34 J s, 1 eV = 1.60 10-19 J, c = 3.00 108 m/s)
A) 1090 nm B) 93.1 nm C) 410 nm D) 93.8 nm
Question 2
If an atomic nucleus containing 64 nucleons has a mass density , what will be the expected mass density of a nucleus containing 512 nucleons?
A) 2 B) 8 C) 4 D) 16 E)
An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution
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