Concept explainers
(a)
The energy of the photon emitted.
(a)
Answer to Problem 41AAP
The energy of the photon emitted is
Explanation of Solution
Write the expression to calculate energy of the photon emitted
Here, change in energy of the photon between the states is
Conclusion:
Substitute
Thus, the energy of the photon emitted is
(b)
The frequency of the photon.
(b)
Answer to Problem 41AAP
The frequency of the photon is
Explanation of Solution
Write the expression to calculate frequency of the photon
Here, Planck's constant is
Conclusion:
The values of Planck constant is
Substitute
Thus, the frequency of the photon is
(c)
The wavelength of the photon.
(c)
Answer to Problem 41AAP
The wavelength of the photon is
Explanation of Solution
Write the expression to calculate wavelength of the photon
Here, speed of light is c.
Conclusion:
The value of speed of light is
Substitute
Thus, the wavelength of the photon is
Want to see more full solutions like this?
Chapter 2 Solutions
Foundations of Materials Science and Engineering
- if Planck's constant were smaller than it is, would quantum phenomena be more or less conspicuous than they are now?arrow_forwardAn atom in a state with l = 1 emits a photon with wavelength 600.000 nm as it decays to a state with l = 0. If the atom is placed in a magnetic field with magnitude B = 2.00 T, what are the shifts in the energy levels and in the wavelength that result from the interaction between the atom’s orbital magnetic moment and the magnetic field?arrow_forwardIn the ground state of cadmium, Cd,a. how many electrons have l = 2 as one of their quantum numbers?b. how many electrons have n = 4 as one of their quantum numbers?c. how many electrons have ml = −1 as one of their quantum numbers?d. how many electrons have ms =-1/2 [as one of their quantum numbers?arrow_forward
- Why do quantum effects only happen on the atomic scale?arrow_forwardExplain the tremendous amount of energy associated with the strong bonds within the nucleus of the atom itself. What is called it?arrow_forwardUsing the periodic table, predict the charges of the ions ofthe following elements: (a) Ga, (b) Sr, (c) As, (d) Br, (e) Se.arrow_forward
- when an electron and a photon of the same kinetic energy encounter a potential barrier of the same height and width, which one ofarrow_forwardList all the orbitals in principal level. Specify the three quantum numbers for each orbital. n = 2arrow_forwardin an FCC crystal Cu (111)[110] is a favorite system true or false explainarrow_forward
- Polarizability is defined as the extent to which the electron cloud surrounding an atom or molecule can be distorted by an external charge. Rank the halogens (F2,Cl2,Br2,I2) and the noble gases (He,Ne, Ar, Kr, Xe) in order of polarizability (from least polarizable to most polarizable). What characteristics of these substances could be used to determine this ranked order?arrow_forwardWhich of the following pairs of atoms and ions are isoelectronic? Se2−, Br− Cs+, Xe Na+, Xe As3−, Cl− Cl−, Ar Ba2+, Cs+arrow_forwardA typical energy of electrons in a modern transition electron microscope is 300 keV. Calculate the corresponding wavelength of the electron beam assuming that the vacuum inside the microscope is ideal.arrow_forward
- Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning