1. How to Draw Bohr Diagrams
ATOMIC BASICS
How to Draw Bohr Diagrams

2. Bohr Diagrams Find your element on the periodic table.
Determine the number of electrons – it is the same as the atomic number.
This is how many electrons you will draw.

3. Bohr Diagrams
Draw a nucleus with the element symbol inside—the symbol represents the protons and neutrons for that atom.
Carbon is in the 2nd row of the periodic table, so it has two energy levels.
Draw the energy levels around the nucleus. C

4. C Bohr Diagrams Add the electrons. Carbon has 6 electrons.
The first energy level can only hold 2 electrons. C

5. Bohr Diagrams
Since you have 2 electrons already drawn, you need to add 4 more.
These go in the 2nd energy level. C

6. C Bohr Diagrams Check your work.
You should have 6 total electrons for Carbon.
Only two electrons can fit in the 1st energy level.
The 2nd energy level can hold up to 8 electrons.
The 3rd energy level can hold a total of 18 electons, but the elements in the first few rows only use 8 electrons. C

7. Bohr Diagrams
Try the following elements on your own: H He O Al Ne C

8. H Bohr Diagrams Try the following elements on your own: H – 1 electronAl Ne K H

9. Bohr Diagrams He Try the following elements on your own: H
He - 2 electrons O Al Ne K He

10. Bohr Diagrams O Try the following elements on your own: H He
O - 8 electrons Al Ne K O

11. Bohr Diagrams Al Try the following elements on your own: H He O
Al - 13 electrons Ne K Al

12. Bohr Diagrams Ne Try the following elements on your own: H He O Al
Ne - 10 electrons K Ne

13. You should know how to draw a Bohr Diagram for the first 20 elements.
Bohr Diagrams
You should know how to draw a Bohr Diagram for the first 20 elements.