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In graph Frontier
PhysicsEstablished

Neutron

A neutron is a subatomic particle, symbol n or n0, that has no electric charge, and a mass slightly greater than that of a proton.

NeutronAtomic nucleusIsotopeAtomProtonRadioactive decayNuclear fissionNuclear binding energyMolecule

At a glance

Type
scale
Disciplines 1
Physics
Mental models 0
—
Role in the graph
Connector

Key signals

Cross-disciplinary reach
Disciplines
1
  • Physics
Evidence & development

Dependencies

What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.

Enables · leads to

Isotopedepends onNeutronEstablished

Open Isotope →

isotope depends on neutron.

Mechanism: Isotopes are atoms of the same element that differ only in their number of neutrons.

Sources:

System context

Neutronis part ofAtomic nucleusEstablished

Open Atomic nucleus →

neutron is part of atomic nucleus.

Mechanism: Neutrons share the nucleus with protons: uncharged, they add mass and help bind the nucleus together against proton repulsion.

Sources:

Structural role & consequence

Interpreted from the current atlas graph — what the connections mean, not just how many there are.

  • Currently dark in the atlas: 2 of 2 of its relations lack claim-level evidence.

    atlas representation · Describes the current Thinking OS representation, not the state of the world.

  • Structural neighbourhood: 2 → 7 → 31 concepts reachable within 3 hops.

    structural · Structural reach — being reachable is not the same as being understood.

  • All 2 of its relationships stay within its own discipline — a field-specific concept in the current atlas.

    structural · Structural graph analysis — not a claim of importance, causation or history.

0%

cross-field
2 within-field, 0 cross-field

0 of 2 relations carry evidence · concept has a verified source

Strengths & constraints

Constraints

  • Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation

Conditions

  • Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural

Dependency radial

What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.

IsotopeNeutron◀ builds onenables ▶

What builds on this

1 concept build on this directly, 1 in total, across 2 disciplines.

ChemistryPhysics

Structural downstream reach along dependency edges — not a claim of historical necessity.

Seen through each discipline

How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.

Physics

Through this lens it connects to Atomic nucleus and Isotope.

Neutron through the Physics lens →

Key dates

  1. 1932Discoveryneutron: discovery recorded 1932. — Wikidata

Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.

The scientific picture
  • Connects 2 other ideas across 1 discipline.
  • Most of its connections are of the “Kind & structure” kind.

Derived from the graph’s real structure — observations, not a score.

Sources