A green light laser has a wavelength of 525 nm. What is the energy in J/photon of this light?
Planck's constant: 6.626x10^–34 J•s
Velocity of light in a vacuum: 2.998x10^8 m/s
Which of the following transitions of an electron in a hydrogen atom will have the longest wavelength?
5 -> 4
4 -> 2
3 -> 4
3 -> 1
A possible excited state of a hydrogen atom has an electron in a 4p orbital. What is one possible set of values of the quantum numbers n, l, and ml for this electron?
4, 1, 0
4, 3, +3
4, 2, -1
4, 0, 0
The following set of quantum numbers n, l, ml, and ms is not possible. Why?
n = 2, l = 1, ml = -1, and ms = 0
The value of ms must be ±½
None of the other answers is correct
The value of ml cannot be negative
The lowest value of l is 0, not 1
A particular orbital has n = 4 and l = 2. What type of orbital must this be?
4d
3p
5d
4p
Which of the following sets of quantum numbers is valid for an electron in a 4f orbital?
4, 3, +4, -½
4, 2, -3, ½
4, 2, 1, -½
4, 3, 0, -½
The most prominent line in the emission spectrum of aluminum is 396.15 nm. What is the energy, in kJ/mol, of 1 mole of photons with this wavelength?
Planck's constant: 6.626x10^–34 J•s
Velocity of light in a vacuum: 2.998x10^8 m/s
Avogadro's number: 6.022x10^23 mol^–1
Consider only transitions for the n = 1 through n = 5 energy levels for the hydrogen atom.
Photons with the highest energy are from the level with n = A to a level with n = B. What are the values of A and B?
4, 1
3, 2
5, 4
5, 1