Questions from Modern Physics

Q: Consider an electron in the N shell. a. What

Consider an electron in the N shell. a. What is the smallest orbital angular momentum it could have? b. What is the largest orbital angular momentum it could have? Express your answers in terms of ħ...

Q: An electron is in the hydrogen atom with n = 5.

An electron is in the hydrogen atom with n = 5. a. Find the possible values of L and Lz for this electron, in units of ħ. b. For each value of L, find all the possible angles between L and the z-ax...

Q: The orbital angular momentum of an electron has a magnitude of 4

The orbital angular momentum of an electron has a magnitude of 4.716 * 10-34 kg.m2/s. What is the angular momentum quantum number l for this electron?

Q: If the energy of the H2 covalent bond is -4.

If the energy of the H2 covalent bond is -4.48 eV, what wavelength of light is needed to break that molecule apart? In what part of the electromagnetic spectrum does this light lie?

Q: The average kinetic energy of an ideal­gas atom or molecule

The average kinetic energy of an ideal­gas atom or molecule is 3/2 kT, where T is the Kelvin temperature (Chapter 18). The rotational inertia of the H2 molecule is 4.6 * 10-48 kg . m2. What is the val...

Q: A lithium atom has mass 1.17 * 10-26

A lithium atom has mass 1.17 * 10-26 kg, and a hydrogen atom has mass 1.67 * 10-27 kg. The equilibrium separation between the two nuclei in the LiH molecule is 0.159 nm. a. What is the difference in...

Q: a. A particle in a box has ave function Ψ (

a. A particle in a box has ave function Ψ (x, t) = Ψ2(x)e-iE2t/ħ, where Ψn and En are given by Eqs. (40.35) and (40.31), respectively. If the energy of the particle is measured, what is the result? b...

Q: If a sodium chloride (NaCl) molecule could undergo an n

If a sodium chloride (NaCl) molecule could undergo an n n - 1 vibrational transition with no change in rotational quantum number, a photon with wavelength 20.0 µm would be emitted. The mass of a...

Q: When a hypothetical diatomic molecule having atoms 0.8860 nm apart

When a hypothetical diatomic molecule having atoms 0.8860 nm apart undergoes a rotational transition from the l = 2 state to the next lower state, it gives up a photon having energy 8.841 * 10-4 eV. W...

Q: The vibrational and rotational energies of the CO molecule are given by

The vibrational and rotational energies of the CO molecule are given by Eq. (42.9). Calculate the wavelength of the photon absorbed by CO in each of these vibration­rotation transitions: a...