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Berkelium: Characters, History & Applications

Berkelium is a synthetic chemical element; it has symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series. It is named after the city of Berkeley, California, the location of the Lawrence Berkeley National Laboratory (then the University of California Radiation Laboratory) where it was discovered in December 1949.…

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Berkelium topic overview

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

Related topics
200
Source areas
8
Connected nodes
211
Extracted relationships
238
Concept neighborhoods
50
Bridge connections
211

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.

Characteristics · 58 topics
History · 40 topics
Compounds · 32 topics
Overview · 31 topics
Synthesis and extraction · 25 topics
Nuclear fuel cycle · 6 topics
Applications · 5 topics
Health issues · 3 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.

245Bk
synth
246Bk
synth
247Bk
synth
248Bk
synth
249Bk
synth
Appearance
silvery

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.

Overview

Characteristics

History

Synthesis and extraction

Compounds

Applications

Nuclear fuel cycle

Health issues

Bibliography

  • ISBN ISBN (identifier)
  • Doi Doi (identifier)

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.

How Berkelium connects Entity context

The extracted context around Berkelium shows recurring relationship patterns in the source. For example, Berkelium → Academic Press, Advances, Alan, Arnold, Berlin, Butterworth-Heinemann, Chemistry, Earnshaw, Elements, Greenwood, Gruyter, Harry Julius, Hobart, Holleman, In Emeléus, Inorganic Chemistry, ISBN, Nils, Norman, Oxford Another extracted example is Berkelium → Albert Ghiorso, Although, Berkeley, Bk, California, Californian, December, Glenn, It, Johan Gadolin, Kenneth Street Jr, Marie, Pierre Curie, Previously, Seaborg, Similar, Stanley Gerald Thompson, Sweden, The, They. Use these groups to spot repeated connection types before inspecting the individual relationships.

Berkelium

Top relations

related to Bibliography · 26
Berkelium → Academic Press, Advances, Alan, Arnold, Berlin, Butterworth-Heinemann, Chemistry, Earnshaw, Elements, Greenwood, Gruyter, Harry Julius, Hobart, Holleman, In Emeléus, Inorganic Chemistry, ISBN, Nils, Norman, Oxford
related to history · 24
Berkelium → Albert Ghiorso, Although, Berkeley, Bk, California, Californian, December, Glenn, It, Johan Gadolin, Kenneth Street Jr, Marie, Pierre Curie, Previously, Seaborg, Similar, Stanley Gerald Thompson, Sweden, The, They
related to Bulk metal preparation · 23
Berkelium → Arco, Atomic Reactors, Burris, Cunningham, Dimitrovgrad, High Flux Isotope Reactor, Idaho, In, It, Material Testing Reactor, NIIAR, Oak Ridge, Oak Ridge National Laboratory, Research Institute, Russia, SM-2, Stanley Gerald Thompson, Tennessee, The, These
related to Separation · 21
Berkelium → Ag2S2O8, BiO, Bk, BrO, Cr2O2, CrO2, HDEHP, HOPO, III, It, IV, LI, More, O3, Oak Ridge National Laboratory, PbO2, Reduction, The, These, This
has application · 14
Berkelium → Berkelium-249, Dubna, HFIR, It, JINR, Joint Institute, Lawrence Livermore National Laboratory, Nuclear Research, Oak Ridge, Russia, Russia-US, There, This, U400
related to Occurrence · 13
Berkelium → All, Analysis, Chernobyl, Earth, Enewetak Atoll, For, Ivy Mike, November, On Earth, Therefore, Three Mile Island, Thule Air Base B-52, United States
related to Allotropes · 11
Berkelium → ABAC, ABC, At, Fm3m, GPa, No, P63/mmc, The, This, Upon, When
related to Chemical · 9
Berkelium → Aqueous, Bk3, Bk4, However, III, In, Like, The, This
related to Oxides · 9
Berkelium → Bk2O3, BkO, BkO2, II, III, IV, Such, Two, Upon
related to Preparation of isotopes · 8
Berkelium → HFIR, High Flux Isotope Reactor, In, Oak Ridge National Laboratory, Plutonium-239, Tennessee, The, US

Important terminology

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

Important terminology

isotope iii nuclear berkelium-249 produced curium californium actinides element elements alpha first half-life reactor oxidation americium chemical phase laboratory isotopes

Berkelium relationships Subject–Predicate–Object triples

TTTA extracted 238 structured relationships around Berkelium. Examples in this analysis include Berkelium → 245Bk → synth and Berkelium → Appearance → silvery. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Berkelium245Bksynth1.00infobox
Berkelium246Bksynth1.00infobox
Berkelium247Bksynth1.00infobox
Berkelium248Bksynth1.00infobox
Berkelium249Bksynth1.00infobox
BerkeliumAppearancesilvery1.00infobox
BerkeliumAtomic number (Z)971.00infobox
BerkeliumAtomic radiusempirical: 170 pm1.00infobox
BerkeliumBlockf-block1.00infobox
BerkeliumBoiling pointbeta: 2900 K ​(2627 °C, ​4760 °F)1.00infobox
BerkeliumCAS Number7440-40-61.00infobox
BerkeliumCrystal structure​double hexagonal close-packed (dhcp)1.00infobox
BerkeliumDensity (near r.t.)alpha: 14.78 g/cm3 beta: 13.25 g/cm31.00infobox
BerkeliumDiscoveryLawrence Berkeley National Laboratory (1949)1.00infobox
BerkeliumElectron configuration[Rn] 5f9 7s21.00infobox
BerkeliumElectronegativityPauling scale: 1.31.00infobox
BerkeliumElectrons per shell2, 8, 18, 32, 27, 8, 21.00infobox
BerkeliumGroupf-block groups (no number)1.00infobox
BerkeliumHeat of fusion7.92 kJ/mol (calculated)1.00infobox
BerkeliumIonization energies1st: 601 kJ/mol1.00infobox
BerkeliumMagnetic orderingparamagnetic1.00infobox
BerkeliumMain 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…1.00infobox
BerkeliumMelting pointbeta: 1259 K ​(986 °C, ​1807 °F)1.00infobox
BerkeliumNamingafter Berkeley, California, where it was discovered1.00infobox
BerkeliumNatural occurrencesynthetic1.00infobox
BerkeliumOxidation statescommon: +3 +2, +4, +51.00infobox
BerkeliumPeriodperiod 71.00infobox
BerkeliumPhase .mw-parser-output .nobold{font-weight:normal}at STPsolid1.00infobox
BerkeliumPronunciation/bərˈkiːliəm/ ⓘ (bər-KEE-lee-əm)1.00infobox
BerkeliumPronunciation/ˈbɜːrkliəm/ ⓘ (BUR-klee-əm)1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Berkelium bring nearby vocabulary together. In this analysis, examples include Iii, Nuclear and Oxidation. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Berkelium
    • Iii
    • Nuclear
    • Oxidation
    • Actinides
    • Iv
    • Isotope
    • State
    • Produced
    • Solid
    • Californium
    • Hydrogen
    • Quantities
  • berkelium
    • Iii
    • Nuclear
    • Oxidation
    • Actinides
    • Iv
    • Isotope
    • State
    • Produced
    • Solid
    • Californium
    • Hydrogen
    • Quantities
  • synthetic chemical element
    • Californium
    • Actinide
    • Bk
    • Alpha
    • Solid
    • Element
    • Curium
    • First
    • Nuclear
    • Particles
    • National
    • Americium
  • lawrence berkeley national laboratory
    • National
    • Oak
    • Ridge
    • Nuclear
    • Isotope
    • Alpha
    • Half-life
    • Reactor
    • Elements
    • Hydrogen
    • Irradiation
    • Particles
  • americium
    • Curium
    • Element
    • Oxidation
    • Californium
    • Elements
    • Fluoride
    • National
    • Bk
    • Hydrogen
    • Quantities
    • Acid
    • Alpha
  • isotope
    • National
    • Nuclear
    • Alpha
    • Isotopes
    • Laboratory
    • Irradiation
    • Oak
    • Quantities
    • Ridge
    • Thus
    • Californium
    • Reactor
  • nuclear reactors
    • Reactor
    • Produced
    • First
    • National
    • Isotopes
    • Californium
    • Actinides
    • Days
    • Oak
    • Quantities
    • Ridge
    • Element
  • oak ridge national laboratory
    • Oak
    • Ridge
    • National
    • Laboratory
    • Irradiation
    • Berkelium-249
    • Nuclear
    • Isotope
    • Days
    • Quantities
    • Alpha
    • Half-life

Connections between topic areas Semantic bridges

For Berkelium, one of the stronger structural bridges in this analysis connects Berkelium with Characteristics. 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
BerkeliumCharacteristics · splits 153 ⟂ 59
BerkeliumHistory · splits 171 ⟂ 41
BerkeliumCompounds · splits 179 ⟂ 33
BerkeliumOverview · splits 180 ⟂ 32
BerkeliumSynthesis and extraction · splits 186 ⟂ 26
BerkeliumNuclear fuel cycle · splits 205 ⟂ 7
BerkeliumApplications · splits 206 ⟂ 6
BerkeliumHealth issues · splits 208 ⟂ 4
BerkeliumBibliography · splits 209 ⟂ 3

Map overview Semantic statistics

Berkelium

Nodes212
Edges211
Triples238
Avg. degree1.99
Density0.009434
Components1

Source & methodology

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

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

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