Online College Courses for Credit

Valence Electrons

Valence Electrons

Author: Sarah Kummeth

-Identify the number of valence electrons an element easily.

Idea for Video: Katie Smith

In this packet you'll learn how to identify how many valence electrons an atom has in an instant!

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 32 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Valence Electrons- the electrons in the final shell of an atom.

Can you identify how many valence electrons there are on a Bohr Diagram?

It's easy! Just count the number of electrons in the outermost electron shell!  






Be: 2 valence electrons.

Al: 3 valence electrons.

Si: 4 valence electrons.

O: 6 valence electrons.

Nice Little Periodic Table :)

Timed Valence Electron Practice!