Species with data from:

Finkelnburg, W.; Humbach, W., Ionisierungsenergien von Atomen und Atomionen, Naturwiss., 1955, 42, 35.

4 matching species were found.

For each matching species the following will be displayed:

• Chemical name
• Chemical formula
• Structure image (if available)

Click on the name to see more data.

1. Actinium (Ac)
   
2. polonium (Po)
   
3. Francium (Fr)
   
4. Astatine (At)