Subject: Ionization Potential and Electron Affinity

From: Wong Yat-Ting <[email-masked]>
Date: Thu, 16 May 1996 18:12:00 +0800

Dear Colleagues,

I have two questions:

1. Which atom has the lowest first ionization potential ?
   I believe it should be either Caesium(Cs) or Francium(Fr).
   The first IP of Cs is 0.142 hartree.  Is there any experimental
   or theoretical value for the first IP of Fr ?

2. Which atom has the the largest electron affinity ?
   I believe it is chlorine atom.  The experimental value is 0.133 hartree.
   Is there any theoretical value ?

Best Regards,

Yat-Ting Wong
[email-masked]