Question

The allowed energies of a quantum system are 0.0 eV, 6.0 eV , and 8.5 eV...

The allowed energies of a quantum system are 0.0 eV, 6.0 eV , and 8.5 eV . What wavelengths appear in the system's emission spectrum? Enter your answers in ascending order separated by commas.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Emission refers the a decrease in the energy of the atom from a higher state to a lower state.

Case 1) An electron transits from 6.0 eV to 0.0 eV, thereby emitting a photon.

E = hc / ?

6 * 1.6 * 10^-19 = (6.63*10^-34)(3*10^8) / ?

? = 2.07 * 10^-7 = 207 nm

Case 2) An electron transits from 8.5 eV to 0.0 eV, thereby emitting a photon.

E = hc / ?

8.5 * 1.6 * 10^-19 = (6.63*10^-34)(3*10^8) / ?

? = 1.46 * 10^-7 = 146 nm

Case 3) An electron transits from 8.5 eV to 6.0 eV, thereby emitting a photon.

E = hc / ?

(8.5-6) * 1.6 * 10^-19 = (6.63*10^-34)(3*10^8) / ?

? = 4.97 * 10^-7 = 497 nm

Thus The wavelengths in ascending order are:

146nm, 207nm, 497nm

Use in m if needed in SI units.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The allowed energies of a simple atom are 0.00 eV, 4.21 eV , and 5.63 eV...
The allowed energies of a simple atom are 0.00 eV, 4.21 eV , and 5.63 eV . Part A What wavelengths appear in the atom's emission spectrum? Enter your answers in ascending order separated by commas. Part B What wavelengths appear in the atom's absorption spectrum? Enter your answers in ascending order separated by commas.
The allowed energies of a simple atom are 0.00 eV, 3.73 eV , and 5.58 eV...
The allowed energies of a simple atom are 0.00 eV, 3.73 eV , and 5.58 eV . Part A What wavelengths appear in the atom's emission spectrum? Enter your answers in ascending order separated by commas. Part B What wavelengths appear in the atom's absorption spectrum? Enter your answers in ascending order separated by commas.
The allowed energies of a simple atom are 0.00 eV, 4.05 eV , and 5.12 eV...
The allowed energies of a simple atom are 0.00 eV, 4.05 eV , and 5.12 eV . Part A What wavelengths appear in the atom's emission spectrum? Enter your answers in ascending order separated by commas. Part B What wavelengths appear in the atom's absorption spectrum? Enter your answers in ascending order separated by comma
a) An electron in a quantum system has allowed energies 1eV, 3eV and 9 eV. What...
a) An electron in a quantum system has allowed energies 1eV, 3eV and 9 eV. What wavelengths are observed in the emission spectrum of this system? Show your work. b) If you must choose from wavelengths obtained in part a) as light source for a photoelectric effect demonstration, with which material(s) will you build your cathode, and with what wavelength you would shine on it? Show your work.
The allowed energies of a simple atom are 0.0 eV, 5.0 eV, and 8.0 eV. An...
The allowed energies of a simple atom are 0.0 eV, 5.0 eV, and 8.0 eV. An electron traveling at a speed of 1.9 x 10^6 m/s collisionally excites the atom. A) What is the minimum speed the electron could have after the collision? B) What is the maximum speed the electron could have after the collision?
A researcher observes hydrogen emitting photons of energy 0.661 eV . What are the quantum numbers...
A researcher observes hydrogen emitting photons of energy 0.661 eV . What are the quantum numbers of the two states involved in the transition that emits these photons? Enter your answers separated by a comma.
Two point charges, Q1 = 3.6 μC and Q2 = -1.3 μC , are placed on...
Two point charges, Q1 = 3.6 μC and Q2 = -1.3 μC , are placed on the x-axis. Suppose that Q2 is placed at the origin, and Q1 is placed at the coordinate x1 = −6.0 cm (Figure 1). Part A) At what point(s) along the xx axis is the electric field zero? Determine the x-coordinate(s) of the point(s). Express your answer using two significant figures. If there is more than one answer, enter your answers in ascending order separated...
An electron confined to a one-dimensional box has energy levels given by the equation En=n2h2/8mL2 where...
An electron confined to a one-dimensional box has energy levels given by the equation En=n2h2/8mL2 where n is a quantum number with possible values of 1,2,3,…,m is the mass of the particle, and L is the length of the box.    Calculate the energies of the n=1,n=2, and n=3 levels for an electron in a box with a length of 180 pm . Enter your answers separated by a comma. Calculate the wavelength of light required to make a transition...
Some quantum mechanical system has the following energy levels: E1 = 1.2 × 10−19 J, E2...
Some quantum mechanical system has the following energy levels: E1 = 1.2 × 10−19 J, E2 = 1.5 × 10−19 J, E3 = 4.8 × 10−19 J. 1) Find all of the wavelengths of light that could be emmitted from this system (spectral lines) 2) For each spectral line, identify what part of the electromagnetic spectrum it lies in. 3) Suppose that there were 4 electrons occupying a set of molecular orbitals with the energies above; Find the lowest unoccupied...
Two point charges, Q1 = 3.3 μC and Q2 = -1.3 μC , are placed on...
Two point charges, Q1 = 3.3 μC and Q2 = -1.3 μC , are placed on the x axis. Suppose that Q2 is placed at the origin, and Q1 is placed at the coordinate x1 = − 4.0 cm. At what point(s) along the x axis is the electric field zero? Determine the x-coordinate(s) of the point(s). If there is more than one answer, enter your answers in ascending order separated by commas. At what point(s) along the x axis...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT