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Lewis Acids and Bases Mind Map

See how Lewis theory defines acids and bases by electron pairs, with examples. Then turn your own chemistry notes or PDF into a map.

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Interactive mind maps of the main ideas and how they connect. Free: overview maps (detailed maps on your first 3 creations). Plus: detailed maps with supporting concepts.
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Your first PDF or PNG export is free; Plus exports anytime.
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Free plan: 5 creations a week, up to 3 a day. Plus: $9.99/month or $99.90/year (USD; local prices at checkout).
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What you can upload
PDF, Word (.docx), PowerPoint (.pptx), plain text or Markdown, and images (PNG, JPG, WebP, GIF), or type a topic. One file per creation on the free plan; several at once on Plus.

How it compares: vs Knowt · vs Quizlet · vs NotebookLM · vs Mapify

Build a Lewis Map From Your Notes

Start from your textbook chapter, lecture slides or a simple topic name.

Upload your chemistry material

Add a PDF, Word or PowerPoint file, or paste notes, and the AI builds the map.

Organized by concept

Branches separate definitions, electron pair behavior, adducts and examples.

Quiz and flashcards next

Turn the map into a quiz or flashcards to test how well you can classify species.

How to Make Your Own Lewis Map

Three steps from your notes to a study-ready map.

  1. 1

    Add your notes or type a topic

    Upload a chapter, slides or a file, or type Lewis acids and bases.

  2. 2

    AI builds the map

    Definitions, electron pair donors and acceptors, and examples become branches.

  3. 3

    Study, expand and quiz

    Expand any node, edit text, export as PNG or PDF, or turn the map into a quiz.

Lewis Acids and Bases Mind Map Explained

A Lewis acid and base mind map organizes Lewis theory, which defines an acid as an electron pair acceptor and a base as an electron pair donor. Unlike the Brønsted-Lowry model, which focuses on proton transfer, Lewis theory covers reactions with no hydrogen at all, such as the formation of coordinate covalent bonds between a metal ion and ligands.

  • Definitions: Lewis acid accepts an electron pair; Lewis base donates one.
  • Electron pair donors: lone pairs on atoms such as N, O or halide ions.
  • Electron pair acceptors: species with an empty orbital, such as BF3 or metal cations.
  • Adducts: the product formed when a donor and acceptor share an electron pair.
  • Examples: ammonia with boron trifluoride, and hydroxide with metal ions.

Use the map to revise classifications before an exam or to check a reaction. CogniGuide can build a personalized version from your own chemistry notes.

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Lewis Acid and Base FAQ

Common questions about Lewis theory and building your own map.

How is a Lewis acid different from a Brønsted acid?

A Brønsted acid donates a proton (H+), while a Lewis acid accepts an electron pair. Every Brønsted acid is also a Lewis acid, but Lewis theory covers more reactions, including those with no proton transfer.

Why is BF3 a Lewis acid?

Boron in BF3 has an empty p orbital and only six electrons in its valence shell, so it can accept a lone pair from a donor such as ammonia.

Which file types can I use to build a Lewis map?

You can upload PDF, Word (DOCX), PowerPoint (PPTX), text or Markdown files, or an image. You can also type the topic directly.

Can I turn my Lewis map into a quiz?

Yes. Once the map is built, you can turn it into a quiz to test how well you classify acids, bases and adducts.