The Exclusion Principle and Solid Matter (Parent Q&A)
This guide explains the main ideas in the lesson and the links between them. Open Full Article...
Pauli exclusion principle
The Exclusion Principle and Solid Matter (Teach This Topic)
This guide supports you in teaching how the Pauli exclusion principle shapes electron arrangements in atoms and solids. Open Full Article...
The Exclusion Principle and Solid Matter
Why can’t all the electrons in matter crowd into the same lowest-energy state? Open Full Article...
Electron Orbitals and Probability Clouds (Parent Q&A)
This guide explains the main ideas in the lesson about electron orbitals and probability clouds. Open Full Article...
Electron Orbitals and Probability Clouds (Teach This Topic)
This guide supports teaching the finished lesson on how quantum mechanics describes electrons using orbitals rather than fixed paths. Open Full Article...
Electron Orbitals and Probability Clouds
If an electron does not follow a tiny planetary orbit, what does an orbital picture show? Open Full Article...
If Atoms Are Mostly Empty Space, Why Don’t We Fall Through the Earth? (Parent Q&A)
This guide helps parents support discussion of why solid objects do not pass through one another. Open Full Article...
If Atoms Are Mostly Empty Space, Why Don’t We Fall Through the Earth? (Teach This Topic)
This plan helps you support a learner aged 11 to 16 through the lesson’s central puzzle: why solid objects do not pass through the ground even though… Open Full Article...
If Atoms Are Mostly Empty Space, Why Don’t We Fall Through the Earth?
If atoms have no hard outer surfaces and are mostly empty space, what creates the solid force that stops us falling through the ground? Open Full Article...