Tuesday

September 30, 2014

September 30, 2014

Posted by **shylo** on Monday, February 16, 2009 at 3:26am.

The emission lines of one-electron atoms and ions can all be fit to the equation describing the spectrum of the hydrogen atom:

E= -(2.18X10^-18J)Z^2(1/n^2final-1/n^2initial) where Z is the atomic number.

a) calculate the energy (in J) of one photon associated with the transition of the electron in He^+2 from n=2 to n=1.

b) As the value of Z increases, does the wavelength of the photon associated with the transition from n=2 to n=1 increase or decrease? Explain.

- college-- chemistry -
**Dr Russ**, Monday, February 16, 2009 at 3:50ama) you need to plug the values into the equation to find E, where Z is the atomic number of helium.

b) if Z increases what happens to E? A larger value for Z will give a larger value for E. What is the relationship between E and wavelength? You also need this for your other posting.

**Answer this Question**

**Related Questions**

college-- chemistry - This problem really bugs me and I did figure out the ...

chemistry - This question I really don't get it. I tried tried tried to figure ...

Chemistry - My teacher gave us the answer to a chemistry problem and i cannot ...

Geometry - Okay, this is a problem that I've tried over ten times before getting...

Math 141 - I am having trouble with this problem. perform the indicated ...

Easy (yet confusing) Algebra - These problems are pretty easy, but confusing (as...

Math - I'm stuck on this 1 math problem. I've tried many ways to figure it out, ...

College Math II - Show a complete solution to each problem. Find the exact ...

Math - Explain a real-world problem that you used math to solve. What ...

pre calculus - Hi, I am having a problem trying to find and understanding how ...