The Emergence Machine

Actinium

abstract · Chemistry · Level 3 · E2

E2Nuclear

Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.

Trace. Question. Emerge.

Emergence definition

Actinium is a substance that undergoes change, resulting in a transformation of state or condition, driven by energy and occurring over a sequence of events, and is classified as a chemical element with the symbol Ac and atomic number 89.

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Wiktionary senses

External reference — all senses of the word “actinium” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.

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Source: Wiktionary — “actinium”. Content available under CC BY-SA 4.0.

Historical origin

Origin word
actinium
Origin language
English

Prerequisite chain

Possible path of this concept down to the fundamental substrate.

thisfoundationsL3L2L1L0ActiniumSubstanceChangeMatterEnergyPatternSpaceTimeE1 concrete → E14 abstract

Neighborhood

Direct prerequisites above, concepts that depend on this one below.

thisprerequisitesActiniumL3ChangeL1SubstanceL2E1 concrete → E14 abstract

In other languages

Prerequisites

What you need to understand first.

  • Change L1 (requires)
    actinium requires understanding change as a foundational concept
  • Substance L2 (requires)
    actinium requires understanding substance as a foundational concept