1.A photon of visible light has sufficient energy to excite the electron from the n=2 to the n=6 energy state.
2.The wavelength of light emitted when the electron returns to the ground state from n=3 will be the same as the wavelength of light absorbed to go from n=1 to n=3.
3.For n=3, the electron is in the first excited state.
4.The frequency of light emitted when the electron drops from n=5 to n=2 is less than the frequency of light emitted when the electron drops from n=4 to n=1
2006-11-02 08:31:20 · 4 answers · asked by Juan V 1 in Science & Mathematics ➔ Chemistry
Some hints:
n=1 is ground, meaning unexcited
Energy= Planck's constant * speed of light / wavelength
Visible light has a wavelength of 400 (blue/violet) to 700 (red) nm (nano is 10^-9)
Planck's constant= 6.626*10^-34 J*s
Light speed is 2.998x10^8 m/s
Higher wavelength correlates to lower frequency and less energy.
Frequency = light speed/wavelength. So frequency range for visible light is 7.5x10^14Hz (blue) to 4.28x10^14 Hz(red)
2006-11-02 08:40:22 · answer #1 · answered by calcu_lust 3 · 0⤊ 0⤋
I know #3 is out because the electron is considered in an excited state at n=2 or above.
Man its been years since I was in school, dont realize until I get questions like this that I didnt retain most of what I learned. Sorry, wish I could've been more help.
2006-11-02 08:42:41 · answer #2 · answered by Kristin Pregnant with #4 6 · 0⤊ 0⤋
The first 6 energy levels of the electron in the hydrogen atom are:
-13.6, -3.4, -1.51, -.85, -.54, -.38 all in eV.
So to go from 2 to 6 you need -.38 - (-3.4) = 3.02eV of energy.
Visible light has photon energies between 1.8eV and 3.1eV.
So answer to 1 is yes (just barely).
2. yes this is true.
3. no. the first excited state is n=2
4. from 5 to 2 you have -.54 - (-3.4) = 2.86 eV
from 4 to 1 you have -.85 - (-13.6) = 12.75eV
freq is directly proportional to energy, so freq from 5 to 2 is less than freq from 4 to 1.
2006-11-02 08:51:03 · answer #3 · answered by Jim C 3 · 1⤊ 0⤋
a million must be faux 2 must be faux because if electron drops down from n=3 to n=2 it would want to have decrease capacity then if a electron drops from n=3 to n=a million 3 is authentic, as you boost capacity aspect you're also boost atomic radii 4 faux it takes more effective evergy to ionize an electron from the floor state then the n=3 capacity aspect 5 ????? i dont comprehend what which skill lol
2016-12-05 11:37:52 · answer #4 · answered by ? 4 · 0⤊ 0⤋