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Helium (from Ancient Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements, and it does not have a melting point at standard…
The analysis highlights Characters, History, Applications and Standards as prominent areas in the source structure around Helium.
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
The extracted context around Helium shows recurring relationship patterns in the source. For example, Helium → After, American Great Plains, Bolling Field, C-7, Cady, David McFarland, December, Dexter, Earth, Erasmus Haworth, Following, Hamilton Cady, Hampton Roads, Kansas, Lawrence, McFarland, Naval Aircraft Factory-built USS, Navy's, Navy's C-class, September Another extracted example is Helium → August, D1, D2 Fraunhofer, D3, Earth, Edward Frankland, English, French, Greek, Guntur, He, In, India, It, Italian, Jules Janssen, Lockyer, Luigi Palmieri, Mount Vesuvius, Norman Lockyer. Use these groups to spot repeated connection types before inspecting the individual relationships.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
gas helium-4 hydrogen used liquid also states helium-3 elements natural use united two produced ii element pressure point high per
TTTA extracted 264 structured relationships around Helium. Examples in this analysis include Helium → 3He → 0.0002% and Helium → 4He → 99.9998%. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Helium | 3He | 0.0002% | 1.00 | infobox |
| Helium | 4He | 99.9998% | 1.00 | infobox |
| Helium | Appearance | colorless gas, exhibiting a gray, cloudy glow (or reddish-orange if an especially high voltage is used) when placed in an electric field | 1.00 | infobox |
| Helium | Atomic number (Z) | 2 | 1.00 | infobox |
| Helium | Atomic radius | empirical: 31 pm | 1.00 | infobox |
| Helium | Block | s-block | 1.00 | infobox |
| Helium | Boiling point | 4.222 K (−268.928 °C, −452.070 °F) | 1.00 | infobox |
| Helium | CAS Number | 7440-59-7 | 1.00 | infobox |
| Helium | Covalent radius | 28 pm | 1.00 | infobox |
| Helium | Critical point | 5.1953 K, 0.22746 MPa | 1.00 | infobox |
| Helium | Crystal structure | hexagonal close-packed (hcp) | 1.00 | infobox |
| Helium | Density (at STP) | 0.1786 g/L | 1.00 | infobox |
| Helium | Discovery | Norman Lockyer (1868) | 1.00 | infobox |
| Helium | Electron configuration | 1s2 | 1.00 | infobox |
| Helium | Electronegativity | Pauling scale: no data | 1.00 | infobox |
| Helium | Electrons per shell | 2 | 1.00 | infobox |
| Helium | First isolation | William Ramsay, Per Teodor Cleve, Abraham Langlet (1895) | 1.00 | infobox |
| Helium | Group | group 18 (noble gases) | 1.00 | infobox |
| Helium | Heat of fusion | 0.0138 kJ/mol | 1.00 | infobox |
| Helium | Heat of vaporization | 0.0829 kJ/mol | 1.00 | infobox |
| Helium | Ionization energies | 1st: 2372.3 kJ/mol | 1.00 | infobox |
| Helium | Ionization energies | 2nd: 5250.5 kJ/mol | 1.00 | infobox |
| Helium | Magnetic ordering | diamagnetic | 1.00 | infobox |
| Helium | Main isotopes | .mw-parser-output .isotopes-table{text-align:center;width:100%;border-collapse:collapse;margin:0;padding:0}.mw-parser-output .isotopes-table-headers>:not(:first-child){padding:0… | 1.00 | infobox |
| Helium | Molar heat capacity | 20.78 J/(mol·K) | 1.00 | infobox |
| Helium | Molar magnetic susceptibility | −1.88×10−6 cm3/mol (298 K) | 1.00 | infobox |
| Helium | Naming | after Helios, Greek god of the Sun | 1.00 | infobox |
| Helium | Natural occurrence | primordial | 1.00 | infobox |
| Helium | Oxidation states | common: (none) | 1.00 | infobox |
| Helium | P (Pa) | Vapor pressure (defined by ITS-90) P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1.23 1.67 2.48 4.21 | 1.00 | infobox |
The concept neighborhoods around Helium bring nearby vocabulary together. In this analysis, examples include Gas, Used and Liquid. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Helium, one of the stronger structural bridges in this analysis connects Helium with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Helium to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Characters, History, Applications & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Helium · EN edition · Analysis: TopicsToTalkAbout