1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Nature of Atoms

  1. Apr 27, 2008 #1
    1. The problem statement, all variables and given/known data
    (a) What is the minimum energy (in electron volts) that is required to remove the electron from the ground state of an ionized atom (Z=2)? (b) What is the ionization energy for this ion?

    2. Relevant equations
    After doing what I got the answer for part (b)... but I don't know what part (a) requires. I thought this number would be 13.6 eV, but it's not. What exactly is part (a) asking?

    3. The attempt at a solution

    I used the equation E= -13.6*(Z^2/n^2). I plugged in 2 for Z and 1 for n.
  2. jcsd
  3. Apr 28, 2008 #2


    User Avatar
    Staff Emeritus
    Science Advisor

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook