Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Gadolinium

Gadolinium is a chemical element; it has symbol Gd and atomic number 64. It is a silvery-white metal when oxidation is removed. Gadolinium is a ductile and malleable rare-earth element. It reacts with atmospheric oxygen or moisture slowly to form a black oxide coating. Gadolinium below its Curie point of 20 °C (68 °F) is ferromagnetic, with an attraction…

Characters, History, Applications & Art

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Gadolinium. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

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

148Gd
synth
150Gd
synth
151Gd
synth
152Gd
0.2%
153Gd
synth
154Gd
2.18%

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Characteristics

History

Occurrence

Production

Applications

Safety

Biological use

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Gadolinium

Nodes162
Edges161
Triples206
Avg. degree1.99
Density0.012346
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Gadolinium

Top relations

related to External links · 19
Gadolinium → Archived, Campos, Complication, Department, Ersan Altun, February, Gadolinium MR Contrast, GadoliniumRefrigerator, HillInside Japan's Super Kamiokande, It's Elemental, MedPix, MR, Nephrogenic Systemic Fibrosis, North Carolina Hospitals Chapel, Radiology University, Richard, Semelka, Vasco Herédia, Wayback Machine Rafael
related to history · 16
Gadolinium → Boisbaudran, De Marignac, Finnish, Félix Trombe, German, He, In, Jean Charles Galissard, Johan Gadolin, Marignac, Martin Klaproth, Paul-Émile Lecoq, Pure, Swiss, The French, Yα
related to Safety · 15
Gadolinium → About, As, Because, GBCAs, Gd-chelate, Gd-chelated, In, It, Its, IV, MRI, NSF, The, Toxicity, Use
related to Phosphors · 14
Gadolinium → Ce, Gd, Gd2O2S, Gd2SiO5, GSO, It, Tb, Tb3, Terbium-doped, The, This, TV, X-ray, X-rays
related to Occurrence · 11
Gadolinium → Australia, Brazil, China, Earth's, Gd, India, Paradoxically, Sri Lanka, The, US, World
related to Magnetic refrigeration via magnetocalorics · 10
Gadolinium → Curie, Gadolinium-based, Gd, Gd5, Ge, In Gd5, Magnetic, Pure Gd, Si, SixGe1
related to Magnetic contrast agent · 9
Gadolinium → Brain, Magnevist, MRA, MRI, Nanotubes, Paramagnetic, Similarly, Solutions, Traditional
related to Physical properties · 7
Gadolinium → At, In, It, Its, Like, The, Xe
related to Chemical properties · 6
Gadolinium → Gd, Gd2O3, However, III, It, Unlike
related to Biological use · 5
Gadolinium → EPR, Gd3, GHz, It, MRI

Important terminology Word statistics

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

Important terminology

used contrast magnetic element mri compounds oxide gd agents iii temperature agent paramagnetic oxidation imaging properties metal use gadolinite high

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Gadolinium148Gdsynth1.00infobox
Gadolinium150Gdsynth1.00infobox
Gadolinium151Gdsynth1.00infobox
Gadolinium152Gd0.2%1.00infobox
Gadolinium153Gdsynth1.00infobox
Gadolinium154Gd2.18%1.00infobox
Gadolinium155Gd14.8%1.00infobox
Gadolinium156Gd20.5%1.00infobox
Gadolinium157Gd15.7%1.00infobox
Gadolinium158Gd24.8%1.00infobox
Gadolinium159Gdsynth1.00infobox
Gadolinium160Gd21.9%1.00infobox
GadoliniumAppearancesilvery white1.00infobox
Gadoliniumat T (K)18361.00infobox
GadoliniumAtomic number (Z)641.00infobox
GadoliniumAtomic radiusempirical: 180 pm1.00infobox
GadoliniumBlockf-block1.00infobox
GadoliniumBoiling point3546 K ​(3273 °C, ​5923 °F)1.00infobox
GadoliniumBulk modulusα form: 37.9 GPa1.00infobox
GadoliniumCAS Number7440-54-21.00infobox
GadoliniumCovalent radius196±6 pm1.00infobox
GadoliniumCrystal structure​hexagonal close-packed (hcp) (hP2)1.00infobox
GadoliniumDensity (at 20° C)7.899 g/cm31.00infobox
GadoliniumDiscoveryJean Charles Galissard de Marignac (1880)1.00infobox
GadoliniumElectrical resistivityα, poly: 1.310 µΩ⋅m1.00infobox
GadoliniumElectron configuration[Xe] 4f7 5d1 6s21.00infobox
GadoliniumElectronegativityPauling scale: 1.201.00infobox
GadoliniumElectrons per shell2, 8, 18, 25, 9, 21.00infobox
GadoliniumFirst isolationFélix Trombe (1935)1.00infobox
GadoliniumGroupf-block groups (no number)1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.