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.

Main content

Course: High school chemistry > Unit 1

Lesson 3: The Bohr model and atomic spectra
Science
High school chemistry
Atoms, elements, and the periodic table
The Bohr model and atomic spectra
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Apply: Bohr models

Google Classroom

Problem

A Bohr model of an oxygen atom is shown below.
A Bohr model of an oxygen atom shows a nucleus surrounded by two concentric rings. The ring closest to the nucleus contains 2 dots, and the second ring from the nucleus contains 6 dots.
How many valence electrons does the oxygen atom have?
Choose 1 answer:
Related content
Article
The Bohr model