Register to reply

Calculate the Second Ionization Energy of Lithium

by pasido
Tags: energy, ionization, lithium
Share this thread:
Oct18-12, 09:49 AM
P: 3
1. The problem statement, all variables and given/known data

-Total Energy for [itex]Li \rightarrow Li ^{3+} = 1.960 * 10^{4} kJ/mol[/itex]

-First Ionization Energy of Li = [itex]5.20 * 10^{2} kJ/mol[/itex]

2. Relevant equations
Other than the equation in the image, I used the equation:
Etotal = E1 + E2 + E3

3. The attempt at a solution
Since Etotal and E1 are given, I have E2 and E3 left to solve.

To solve for E3, I used the equation in the picture.

Li^2+= A hydrogen atom (1 electron), I used the equation in the picture to solve for the energy for a single electron. Energy = -1.962*10^-17 J

The problem is, I don't know what to do with that number. How do I convert energy of a single electron to ionization energy?
Phys.Org News Partner Science news on
Security CTO to detail Android Fake ID flaw at Black Hat
Huge waves measured for first time in Arctic Ocean
Mysterious molecules in space
Oct18-12, 12:29 PM
PF Gold
AGNuke's Avatar
P: 456
That energy is the energy you need to supply to the electron in order to overcome coulombic forces, i.e. to ionize the species. Simple enough.
Oct18-12, 12:35 PM
Borek's Avatar
P: 23,393
Quote Quote by pasido View Post
How do I convert energy of a single electron to ionization energy?
What is a mole?

Register to reply

Related Discussions
Ionization Energy of Lithium problem Introductory Physics Homework 4
Lithium energy levels Introductory Physics Homework 0
Ionization energy of lithium atom Advanced Physics Homework 1
Is there a difference between ionization energy and ionization potential? Chemistry 7
Chemistry problem, calculate percent ionization Biology, Chemistry & Other Homework 1