Created and maintained by the American Federation of Teachers, Share My Lesson is a community of teachers, paraprofessionals and school-related personnel, specialized instructional support personnel, higher education faculty, and parents and caregivers who contribute content, collaborate, and stay up to date on the issues that matter to students and educators everywhere.
Connect
Sign up to receive our newsletter.
Too many errors in the valence electron information for a proper rating. Please note the information for the shells is wrong. The first shell can hold 2. The second shell can hold 8. The third shell can hold up to 18. Please correct this information.