Thulium

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Thulium topic overview

The analysis highlights History, Applications and Art as prominent areas in the source structure around Thulium.

Related topics: 125
Source areas: 7
Connected nodes: 132
Extracted relationships: 105
Related term clusters: 23
Bridge connections: 132

What this topic covers Research coverage

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.

Properties · 35 topics

Overview · 23 topics

Occurrence · 20 topics

Applications · 16 topics

History · 15 topics

Biological role · 11 topics

Production · 5 topics

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.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

167Tm: synth
168Tm: synth
169Tm: 100%
170Tm: synth
171Tm: synth
Appearance: silvery gray

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Explore different angles and find fresh ideas to shape your next piece of content.

Thulium

12Chemical element · Symbol (chemistry) · Atomic number

7Per Teodor Cleve · Holmium(III) oxide · Thulium(III) oxide

4Mohs hardness · Ferromagnetic · Antiferromagnetic

9Discovery of the chemical elements · Oxide · Carl Gustaf Mosander

Explore all related topics Closing gaps

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.

History

Production

Applications

Biological role

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Thulium connects Entity context

The extracted context around Thulium shows recurring relationship patterns in the source. For example, Thulium → Ancient Greek, British, Carl Gustaf Mosander, Charles James, Cleve, Durham, Er2O3, Iceland, New Hampshire College, Per Teodor Cleve, Scandinavia, Swedish, Thule, Thulium's, Tm, Tu, Upon, USA Another extracted example is Thulium → Australia, Brazil, China, Earth, Earth's, Greenland, India, Like, Solar System, Tanzania, United States. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

related to history · 18

Thulium → Ancient Greek, British, Carl Gustaf Mosander, Charles James, Cleve, Durham, Er2O3, Iceland, New Hampshire College, Per Teodor Cleve, Scandinavia, Swedish, Thule, Thulium's, Tm, Tu, Upon, USA

related to Occurrence · 11

Thulium → Australia, Brazil, China, Earth, Earth's, Greenland, India, Like, Solar System, Tanzania, United States

related to Lasers · 6

Thulium → Cr, Ho, Holmium-chromium-thulium, Single-element, Tm, YAG

related to Biological role · 4

Thulium → Despite, Humans, Liver, Soluble

related to Production · 4

Thulium → China, Newer, None, US

Ionization energies · 3

Thulium → 1st: 596.7 kJ/mol, 2nd: 1160 kJ/mol, 3rd: 2285 kJ/mol

related to Physical properties · 3

Thulium → Mohs, Pure, Tm

related to X-ray source · 3

Thulium → Despite, Thulium-170, X-ray

is a · 2

Thulium → chemical element, least abundant lanthanide on Earth except for the radioactive promethium

related to Isotopes · 2

Thulium → Known, Natural

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

oxide per compounds used tm metal element lanthanides isotopes cleve water yttrium also lasers green rare radiation sources state form

Thulium relationships Subject–Predicate–Object triples

TTTA extracted 105 structured relationships around Thulium. Examples in this analysis include Thulium → 167Tm → synth and Thulium → 169Tm → 100%. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
Thulium	167Tm	synth	1.00	infobox
Thulium	168Tm	synth	1.00	infobox
Thulium	169Tm	100%	1.00	infobox
Thulium	170Tm	synth	1.00	infobox
Thulium	171Tm	synth	1.00	infobox
Thulium	Appearance	silvery gray	1.00	infobox
Thulium	at T (K)	1117	1.00	infobox
Thulium	Atomic number (Z)	69	1.00	infobox
Thulium	Atomic radius	empirical: 176 pm	1.00	infobox
Thulium	Block	f-block	1.00	infobox
Thulium	Boiling point	2223 K (1950 °C, 3542 °F)	1.00	infobox
Thulium	Brinell hardness	470–900 MPa	1.00	infobox
Thulium	Bulk modulus	44.5 GPa	1.00	infobox
Thulium	CAS Number	7440-30-4	1.00	infobox
Thulium	Covalent radius	190±10 pm	1.00	infobox
Thulium	Crystal structure	hexagonal close-packed (hcp) (hP2)	1.00	infobox
Thulium	Density (at 20° C)	9.320 g/cm3	1.00	infobox
Thulium	Discovery	Per Teodor Cleve (1879)	1.00	infobox
Thulium	Electrical resistivity	poly: 676 nΩ⋅m (at r.t.)	1.00	infobox
Thulium	Electron configuration	[Xe] 4f13 6s2	1.00	infobox
Thulium	Electronegativity	Pauling scale: 1.25	1.00	infobox
Thulium	Electrons per shell	2, 8, 18, 31, 8, 2	1.00	infobox
Thulium	First isolation	Wilhelm Klemm and Heinrich Bommer (1936)	1.00	infobox
Thulium	Group	f-block groups (no number)	1.00	infobox
Thulium	Heat of fusion	16.84 kJ/mol	1.00	infobox
Thulium	Heat of vaporization	191 kJ/mol	1.00	infobox
Thulium	Ionization energies	1st: 596.7 kJ/mol	1.00	infobox
Thulium	Ionization energies	2nd: 1160 kJ/mol	1.00	infobox
Thulium	Ionization energies	3rd: 2285 kJ/mol	1.00	infobox
Thulium	Lattice constants	a = 353.77 pm c = 555.39 pm (at 20 °C)	1.00	infobox

Related concept clusters Related term clusters

The concept neighborhoods around Thulium bring nearby vocabulary together. In this analysis, examples include Per, Oxide and Compounds. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

Thulium
- Per
- Oxide
- Compounds
- Also
- Tm
- Used
- Color
- Form
- Occurs
- Water
- Yttrium
- Cleve
thulium
- Per
- Oxide
- Compounds
- Also
- Tm
- Used
- Color
- Form
- Occurs
- Water
- Yttrium
- Cleve
chemical element
- Cleve
- Element
- Holmium
- Pure
- Promethium
- Tm
- Ytterbium
- Air
- Color
- Half-life
- Isotope
- Oxidation
isotopes of thulium
- Ytterbium
- Isotope
- Stable
- X-ray
- Per
- Holmium
- Promethium
- Air
- Color
- Half-life
- Oxidation
- Pure
per teodor cleve
- Holmium
- Element
- Thulia
- Per
- Thulium
- Metal
- Oxide
- Promethium
- Ytterbium
- Air
- Color
- Half-life
thulium chloride
- Per
- Oxide
- Compounds
- Also
- Tm
- Used
- Color
- Form
- Occurs
- Water
- Yttrium
- Cleve
holmium
- Promethium
- Thulia
- Ytterbium
- Air
- Color
- Half-life
- Isotope
- Oxidation
- Per
- Pure
- Stable
- Two
yttrium
- Tm
- Chemical
- Holmium
- Promethium
- Ytterbium
- Air
- Color
- Half-life
- Isotope
- Oxidation
- Pure
- Stable

Connections between topic areas Semantic bridges

For Thulium, one of the stronger structural bridges in this analysis connects Thulium with Properties. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

Thulium — Properties · splits 97 ⟂ 36

Thulium — Overview · splits 109 ⟂ 24

Thulium — Occurrence · splits 112 ⟂ 21

Thulium — Applications · splits 116 ⟂ 17

Thulium — History · splits 117 ⟂ 16

Thulium — Biological role · splits 121 ⟂ 12

Thulium — Production · splits 127 ⟂ 6

Map overview Semantic statistics

Thulium

Nodes133

Edges132

Triples105

Avg. degree1.99

Density0.015038

Components1

Source & methodology

TTTA analyzes the structure around Thulium to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Applications & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Thulium · EN edition · Analysis: TopicsToTalkAbout

Thulium: History, Applications & Art

Thulium topic overview

What this topic covers Research coverage

Key facts & relationships

Start with your topic. Discover where to go next.

Questions to explore

Explore all related topics Closing gaps

Overview

Properties

History

Occurrence

Production

Applications

Biological role

For the semantics nerds

Advanced semantic analysis

How Thulium connects Entity context

Thulium

Top relations

Important terminology

Important terminology

Thulium relationships Subject–Predicate–Object triples

Related concept clusters Related term clusters

Connections between topic areas Semantic bridges

Map overview Semantic statistics

Thulium

Source & methodology