Main content
Course: AP®︎/College Chemistry > Unit 1
Lesson 7: Valence electrons and ionic compoundsValence electrons and ionic compounds
You might need: Periodic table
If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.