How do I draw a Bohr model?

Find the element's atomic number (equals proton count and electron count for a neutral atom), draw a nucleus circle with the protons and neutrons inside, then add concentric rings outward filling Shell 1 with up to 2 electrons, Shell 2 with up to 8, and Shell 3 with up to 8. With Figviz you describe the element and the tool handles the drawing and labeling for you.

Is the Bohr model maker free?

Yes. You can generate Bohr models on the free credits every account starts with. Buying any pay-as-you-go credit pack removes the watermark and unlocks higher resolutions. Credits never expire.

How many electrons fit in each shell?

For the first 18 elements (the standard range for Bohr model assignments): Shell 1 holds up to 2 electrons, Shell 2 holds up to 8, and Shell 3 holds up to 8. This 2-8-8 pattern means sodium (11 electrons) fills as 2, 8, 1 across three shells. Specify the element and Figviz places the dots correctly.

Can I get a blank or unlabeled Bohr model template?

Yes. Ask for a "blank Bohr model template" or "unlabeled worksheet" in the prompt and Figviz draws empty concentric shells with tick marks for electrons and blank label fields, ready for students to fill in. Great for printed worksheets and quizzes.

Can I use these Bohr models for chemistry class?

Yes. Download a high-resolution PNG (up to 4K) for slides, printed worksheets, study guides, and class posters. As an AI tool it is great for practice and teaching materials; double-check the electron counts before high-stakes use. Diagrams from a paid account can be used in your own teaching resources.

AI-Powered

Bohr Model Maker Bohr Models

Describe any element and get a clean, labeled Bohr model in seconds, with the nucleus drawn, concentric electron shells placed, and electron counts filled in correctly. Perfect for chemistry class, worksheets, and study guides.

Last updated: 2026-06-21

✓Correct electron shell counts✓Labeled nucleus and shells✓Blank template option✓Print and slide ready

Bohr Model Maker

Style

Describe your Bohr model

Free to try ·

Not what you expected? Tell us

Preview

Your Bohr model will appear here

Describe your element and click Generate

Bohr Model Examples

Browse Bohr models made with Figviz, or generate your own above

View

Bohr Model of Carbon

Carbon (atomic number 6) with 2 electrons in the first shell and 4 in the second, all labeled.

carbonBohr modelelectron shells

Bohr Model of Oxygen

Oxygen (atomic number 8): 2 electrons in shell 1 and 6 in shell 2, labeled.

oxygenBohr modelelectron shells

Bohr Model of Sodium (3 Shells)

Sodium (atomic number 11) across three shells: 2, 8, 1, demonstrating the 2-8-8 filling rule.

sodiumBohr modelthree shells

Bohr Model of Hydrogen (Simplest)

Hydrogen: the simplest Bohr model, one proton in the nucleus and one electron in shell 1.

hydrogenBohr modelsimple

Labeled Bohr Model Diagram

A teaching diagram with callout labels pointing to the nucleus, protons, neutrons, electrons, and each shell.

labeledBohr modelteaching diagram

Blank Bohr Model Template

A printable blank template with empty shells and nucleus for students to complete themselves.

blank templateworksheetBohr model

What is a Bohr model?

A Bohr model (also called a Bohr diagram or atomic shell diagram) is a simplified picture of an atom proposed by Niels Bohr in 1913. It shows the nucleus at the center, with protons and neutrons packed inside, and electrons orbiting in fixed concentric shells at set energy levels. While modern quantum mechanics describes electron behavior more accurately, the Bohr model remains the standard teaching diagram in chemistry because it is easy to draw, easy to read, and correctly predicts electron shell counts for elements in the first three periods. Figviz generates a clean, labeled Bohr diagram from a plain description of any element, so you skip the pencil-and-compass work.

How to draw a Bohr model

Find the atomic number: this equals the number of protons, and for a neutral atom, the number of electrons.

Look up the mass number to get the neutron count: neutrons = mass number minus atomic number.

Draw the nucleus: a circle in the center labeled with the proton count (p+) and neutron count (n0) and the element symbol.

Fill the first electron shell: place up to 2 electrons on the innermost ring.

Fill the second shell: place up to 8 electrons on the second ring.

Fill the third shell: place up to 8 electrons on the third ring (for elements up to atomic number 18).

Continue outward until all electrons are placed, labeling each shell.

Parts you can label on a Bohr model

Nucleus: the dense central region containing protons and neutrons.

Protons (p+): positively charged particles that define the element.

Neutrons (n0): neutral particles that add mass to the nucleus.

Electrons (e-): negatively charged particles orbiting in shells.

Electron shells (energy levels): the concentric rings, numbered Shell 1, Shell 2, Shell 3 outward.

Element symbol: placed inside the nucleus for quick identification.

Atomic number and mass number: often added as a label beside or below the diagram.

Electron shell capacity: the 2-8-8 rule

For the first 18 elements (the ones most commonly drawn as Bohr models), the shells fill in a simple pattern: Shell 1 holds at most 2 electrons, Shell 2 holds at most 8 electrons, and Shell 3 holds at most 8 electrons in this simplified model. So hydrogen (1 electron) has just one dot on shell 1; carbon (6 electrons) has 2 on shell 1 and 4 on shell 2; sodium (11 electrons) has 2, then 8, then 1 across three shells. For elements beyond argon (atomic number 18) the shell filling becomes more complex, but the 2-8-8 rule covers virtually all Bohr model assignments at the high school level.

Tips for an accurate Bohr model diagram

Always state the element name and atomic number in your prompt so the diagram uses the correct electron count. Specify whether you want a neutral atom or an ion (losing or gaining electrons changes the outer shell). If you need a teaching diagram, ask for callout labels on each part. For worksheets, ask for a blank template with empty shells and a legend box. After generating, check that the electron dot count in each shell matches the 2-8-8 rule and regenerate with a corrected prompt if any shell is off.

Frequently asked questions

A Bohr model maker is a tool that draws an atomic shell diagram for you. With Figviz you describe an element (for example "Bohr model of carbon") and the AI generates a clean diagram with the nucleus labeled, electron shells drawn as concentric rings, and the correct number of electron dots placed on each shell, in seconds.

Related chemistry tools

All tools →

Make your own bohr model with Figviz

Create a free account and get starter credits to generate your own. No credit card required.