Urgent Chemistry Help?
1. Can someone explain to me how to derive an energy equation for when an electron changes energy levels? Start with En=-B/n^2 (E to the n equals negative B divided by n squared).
2. Derive a wavelength equation for when an electron changes energy levels. Start with En=-B/n^2.
3. Tell me how to calculate frequency.
This would really help me a lot if I got some help.
Favorite Answer
3. Frequency = velocity / wavelength; frequency = the number of wave pulses (i.e crests) that pass a given point in one second. Frequency is measured in cycles per second – cps or Hertz – Hz
I don’t know exactly what you will be tested on tomorrow but I just found a short quiz you could skim over (the answers are included). Who knows maybe your teacher will ask one of these questions!!
http://www.wise.k12.va.us/jjk/Chemistry/ELECTRON.html
Plus, memorize the following equations . . .
speed = wavelength x frequency
energy = Planck’s constant x frequency
Lastly, Good Luck. I hope you do well but eh, even if you don’t it’s still the beginning of the school year and you can make sure that you go in 110% prepared for the next test. Good luck to ya though. Crossing my fingers for you.
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