---
title: "Lewis structures Template – Free Chemistry Diagram | MolDraw"
url: https://www.moldraw.com/templates/library-lewis-structures/
description: "Lewis structures template: Water, ammonia, methane, CO₂, HCN, formaldehyde, ozone, nitrate, carbonate, sulfate, hydronium and ammonium with lone pairs.…"
lang: en
publisher: Scidart Academy
generated: 2026-10-28
---
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# Lewis structures template

![Lewis structures template: Water, ammonia, methane, CO₂, HCN, formaldehyde, ozone, nitrate, carbonate, sulfate, hydronium and ammonium with lone pairs.](https://www.moldraw.com/templates/download/library-lewis-structures.svg)

[Edit in MolDraw](https://www.moldraw.com/)[Download SVG](https://www.moldraw.com/templates/download/library-lewis-structures.svg)

Free template. Download it, or open it in MolDraw to change it first.

Water, ammonia, methane, CO₂, HCN, formaldehyde, ozone, nitrate, carbonate, sulfate, hydronium and ammonium with lone pairs.

## What the template shows

- Every bonding pair and lone pair shown, with formal charges
- Neutral molecules
- H₂O · 2 lone pairs on O
- NH₃ · 1 lone pair on N
- Carbon dioxide
- Hydrogen cyanide
- Ions and formal charges
- O₃ · one resonance form
- Formal charge = valence electrons − lone-pair electrons − ½ bonding electrons.

Drawn with 47 atoms, 2 shapes – every one editable in MolDraw.

## Sources

- [Lewis, J. Am. Chem. Soc. 1916, 38, 762 (The atom and the molecule)](https://doi.org/10.1021/ja02261a002) Original paper
- [Housecroft & Sharpe, Inorganic Chemistry, 5th ed., Pearson 2018](https://openlibrary.org/isbn/9781292134147) Textbook
- [Clayden, Greeves & Warren, Organic Chemistry, 2nd ed., OUP 2012, ch. 4](https://openlibrary.org/isbn/9780199270293) Textbook

## How to use this template

1. Press **Edit in MolDraw**. The template opens on the canvas of the free MolDraw editor.
2. Change anything: move structures, edit atoms and labels, recolour highlights or delete what you do not need.
3. Add your own structures, arrows and text next to it, or combine several templates on one page.
4. Export the drawing as PNG, SVG or PDF for slides, worksheets, theses and papers.

## Frequently asked questions

### Is the Lewis structures template free?

Yes. The Lewis structures template is one of the free MolDraw templates: open it in the editor or download it from this page as SVG or PNG and use it in your slides, worksheets and notes.

### Can I edit the Lewis structures template?

Yes. It opens as an ordinary MolDraw drawing, so every structure, arrow, label and colour can be changed, and you can add your own content around it.

### Is the chemistry checked?

Every structure is checked with RDKit and every curly arrow passes MolDraw’s electron-flow audit. The sources used are listed on this page.

### Do the Lewis structures show lone pairs?

Yes. Every lone pair and formal charge is drawn, as most syllabuses expect.

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