- #1
EmmaLemming
- 19
- 0
Homework Statement
Make a rough estimate of the ionisation potential of potassium (19) given the following infomation relating to its optical spectrum:
wavelength of the first line of the Sharp Series: 1248nm
wavelength of the first line of the Principal Series: 767nm
wavelength of the first line of the Diffuse Series: 1173nm
wavelength of the first line of the Fundamental series: 1516nm
speed of light = 2.998 x 10^8 m/s
Planck Constant = 6.626 x 10^(-34)
Rydberg constant R∞ = 1.097 x 10^7
electronic charge = -1.602 x 10^(-19)
Homework Equations
I = (Rhc)/((n-δ)^2)
The Attempt at a Solution
I have no idea how to go about this at all. I have tried but got nothing..
I was told that δ was a ratio of some sort.. but I don't know what of..
A method of how to go about this would be great and an explanation of why would be handy too.