Register to reply 
Ionizing an electron with light 
Share this thread: 
#1
Mar2612, 07:24 PM

P: 1

What wavelength of light ,λ, would be necessary to ionize an electron at n = 2 in a hydrogen atom?
In my notes there are two equations that seem relevant to my question they are: E=hc/λ and 2.18 x 1018 J((Z^2/n final^2)(Z^2/n initial^2)) where h is planks constant, c is the speed of light, Z is the atomic number of the element, in my case hydrogen, and n is the state the electron is in. I think it means energy state. I tried to think of something, but I don't know. What does it mean by ionizing an electron?? 


#2
Mar2712, 12:01 PM

Sci Advisor
HW Helper
PF Gold
P: 3,724




Register to reply 
Related Discussions  
Ionizing chambers  Nuclear Engineering  1  
Ionizing Radiation  High Energy, Nuclear, Particle Physics  4  
Ionizing Air Guns  General Physics  1  
Ionizing Radiation  Introductory Physics Homework  0  
Ionizing energy  Advanced Physics Homework  7 