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Keyboard graph navigation: press N for concepts or E for relations; use arrow keys, Home, and End to move; Enter selects; Shift plus Enter selects and centers; plus and minus zoom; zero fits; Escape clears the selection. Use the visible viewport buttons as alternatives to dragging, wheel, and pinch gestures.
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Select any concept, construction junction, or annotated relation by pointer, touch, search, or keyboard.
Construction junctions are diamonds. They show where multiple structures must coexist on the same carrier and satisfy compatibility conditions.
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source: Has model / approximation; target: Model / approximation of
Authored annotation
represented by localized electron pairing
Authored explanation
Valence-bond theory models a covalent bond with localized spin-coupled structures and resonance; quantitative accuracy depends on the chosen orbital and configuration space.
How to interpret this relation type
The target is a model, idealization, restricted ansatz, approximation scheme, phenomenological fit, or historical representation used for the source system or theory. It need not have a universal small error parameter and is not thereby a controlled limit or effective theory. The edge label and detail must identify the precise status.
Relation sources
Wikipedia — Chemical bond — Chemical bond · encyclopedic reference · source ID wp-physics-chemical-bond
OpenStax — Chemistry 2e — Chemistry 2e · peer-reviewed open textbook · source ID openstax-chemistry-2e
source: Describes / governs; target: Described / governed by
Authored annotation
localized bonding description
Authored explanation
Valence-bond theory describes bonds through spin-coupled localized configurations and resonance, with quantitative accuracy depending on the wavefunction expansion.
How to interpret this relation type
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
Relation sources
Wikipedia — Chemical bond — Chemical bond · encyclopedic reference · source ID wp-physics-chemical-bond
OpenStax — Chemistry 2e — Chemistry 2e · peer-reviewed open textbook · source ID openstax-chemistry-2e