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Element whose atomic number is greater than 92
Transuranium elements in the periodic table Z > 92 (U) The transuranium (or transuranic) elements are the chemical elements with atomic number greater
Transuranium_element
Chemical element with atomic number 98 (Cf)
with alpha particles (helium-4 ions). It is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass
Californium
Chemical element with atomic number 99 (Es)
synthetic chemical element; it has symbol Es and atomic number 99 and is a member of the actinide series and the seventh transuranium element. Einsteinium was
Einsteinium
Chemical element with atomic number 97 (Bk)
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
Berkelium
Chemical element with atomic number 101 (Md)
a synthetic chemical element; it has symbol Md (formerly Mv) and atomic number 101. A metallic radioactive transuranium element in the actinide series
Mendelevium
Periodic table of the elements with eight or more periods
PMID 20967377. S2CID 31590563. Seaborg, Glenn T. (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Retrieved 2010-03-16. Hoffman
Extended_periodic_table
Chemical element with atomic number 103 (Lr)
radioactive elements. A radioactive metal, lawrencium is the eleventh transuranium element, the third transfermium, and the last member of the actinide series
Lawrencium
Chemical element with atomic number 118 (Og)
nuclear physics Superheavy element – Chemical elements with atomic numbers from 104 to 120 Transuranium element – Element whose atomic number is greater
Oganesson
Chemical substance not composed of simpler ones
transuranic elements, beginning with americium and curium The first transuranium element (element with an atomic number greater than 92) discovered was neptunium
Chemical_element
Chemical element with atomic number 102 (No)
and benefactor of science. A radioactive metal, it is the tenth transuranium element, the second transfermium, and is the fourteenth member of the actinide
Nobelium
Chemical element with atomic number 95 (Am)
neptunium, plutonium, and heavier curium, americium was the fourth transuranium element to be discovered. At the time, the periodic table had been restructured
Americium
American physicist (1907–1991)
an American physicist credited with being the first to produce a transuranium element, neptunium. For this, he shared the 1951 Nobel Prize in Chemistry
Edwin_McMillan
List of history of chemical elements
listed generally in the order in which each was first defined as the pure element, as the exact date of discovery of most elements cannot be accurately determined
Timeline of chemical element discoveries
Timeline_of_chemical_element_discoveries
Chemical element with atomic number 85 (At)
Course in Modern Chemistry. Ginn. p. 313. Seaborg, G. T. (2015). "Transuranium element". Encyclopedia Britannica. Retrieved 24 February 2015. Oon, H. L
Astatine
Chemical element with atomic number 96 (Cm)
Chicago. It was the third transuranium element to be discovered even though it is the fourth in the series – the lighter element americium was still unknown
Curium
Chemical element with atomic number 113 (Nh)
ISBN 978-1-4020-3555-5. Seaborg, Glenn T. (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Retrieved 16 March 2010. Bonchev
Nihonium
Tabular arrangement of the chemical elements
2021. Retrieved 27 March 2021. Seaborg, G. (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Archived from the original on
Periodic_table
Group of chemical elements
institute. Retrieved 2024-02-11. Seaborg, G. T. (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Archived from the original on
Alkaline_earth_metal
Chemical elements that do not occur naturally
table. The following elements do not occur naturally on Earth. All are transuranium elements and have atomic numbers of 95 and higher. All elements with
Synthetic_element
Group of chemical elements
produce an alloy with a lower melting point. Seaborgium is a synthetic transuranium element that does not occur in nature. The seaborgium-260 isotope can be
Group_6_element
F-block chemical elements
uranium with slow neutrons. It was the first transuranium element produced synthetically. Transuranium elements do not occur in sizeable quantities in
Actinide
Theoretical chemical element with atomic number 119 (Uue)
pp. 23–24. ISBN 978-3-527-33541-1. Seaborg (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Archived from the original on
Ununennium
Periodic table group
Ridge National Laboratory. Retrieved 21 April 2017. Seaborg, G. T. "Transuranium element". Encyclopædia Britannica. Retrieved 2010-03-16. Jackson, Mark (2001)
Carbon_group
Chemical elements with atomic numbers from 104 to 120
lawrencium (atomic number 103). By definition, superheavy elements are also transuranium elements, i.e., having atomic numbers greater than that of uranium (92)
Superheavy_element
Theoretical chemical element with atomic number 120 (Ubn)
Press. p. 586. ISBN 978-0-19-960563-7. Seaborg (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Retrieved 2010-03-16. Greenwood
Unbinilium
Device for controlled nuclear reactions
Mixed oxide (MOX) fuel Uranium-plutonium alloy[citation needed] Transuranium element mix (neptunium, plutonium, americium, curium) Thorium Solid fueled
Nuclear_reactor
Group of highly reactive chemical elements
2020. Retrieved 9 January 2018. Seaborg, G. T. (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Archived from the original on
Alkali_metal
Chemical element with atomic number 94 (Pu)
distribution around the globe. One study investigated the effects of transuranium elements (plutonium-238, plutonium-239, plutonium-240) on various fish
Plutonium
Chemical element with atomic number 100 (Fm)
doi:10.1016/0022-1902(79)80117-7. Koch, Lothar (2000). "Transuranium Elements". Transuranium Elements, in Ullmann's Encyclopedia of Industrial Chemistry
Fermium
Series of chemical elements
periodic table In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though
Transition_metal
Type of material
Anisimov, V. I.; Dremov, V. V. (2011). "Electrical resistivity of pure transuranium metals under pressure". Journal of Nuclear Materials. 413 (1): 41–46
Metal
the former temporary name of the chemical element number 111, a synthetic transuranium element. This element was named roentgenium (Rg) in November 2004
List of chemical compounds with unusual names
List_of_chemical_compounds_with_unusual_names
1994 Oct.12 Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. Imperial College Press. pp. 369–399. ISBN 978-1-86094-087-3
List of chemical element naming controversies
List_of_chemical_element_naming_controversies
Theoretical chemical element with atomic number 126 (Ubh)
1103/PhysRevLett.97.242501. PMID 17280272. Seaborg (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Retrieved 2010-03-16. Hoffman
Unbihexium
Private university in Pasadena, California
laureate Edwin McMillan (BS 1928, MS 1929) synthesized the first transuranium element, Nobel laureate Leo James Rainwater (BS 1939) investigated the non-spherical
California Institute of Technology
California_Institute_of_Technology
Theoretical chemical element with atomic number 122 (Ubb)
65.3175. Retrieved 31 January 2021. Seaborg (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Retrieved 2010-03-16. Audi,
Unbibium
Chemical element with atomic number 93 (Np)
(6th ed.). New York: John Wiley & Sons. Koch, Lothar (2000). "Transuranium Elements". Transuranium Elements, in Ullmann's Encyclopedia of Industrial Chemistry
Neptunium
Chemical element with atomic number 117 (Ts)
ISBN 978-1-4020-9974-8. Hoffman, D.C.; Ghiorso, A.; Seaborg, G.T. (2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78-326244-1. Beiser
Tennessine
Chemical element with atomic number 115 (Mc)
OCLC 48965418. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78-326244-1. Kragh
Moscovium
Retrieved 2011-05-07. Hoffman, D.C; Ghiorso, A.; Seaborg, G.T. (2000). The Transuranium People: The Inside Story. Imperial College Press. pp. 187–189, 385.
List of chemical elements named after people
List_of_chemical_elements_named_after_people
Chemical element with atomic number 106 (Sg)
chemical element; it has symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can
Seaborgium
Theoretical chemical element with atomic number 124 (Ubq)
65.3175U. doi:10.1143/JPSJ.65.3175. Seaborg (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Retrieved 2010-03-16. Audi,
Unbiquadium
Chemical element with atomic number 89 (Ac)
actinides, was generally accepted after Glenn T. Seaborg's research on the transuranium elements (although it had been proposed as early as 1892 by British chemist
Actinium
Chemical element with atomic number 43 (Tc)
Technetium is a chemical element; it has symbol Tc and atomic number 43. It is the lightest element whose isotopes are all radioactive. Technetium is one
Technetium
rabbit population. February 9 – Californium, a radioactive actinide transuranium element, is first synthesized by Stanley G. Thompson, Kenneth Street Jr.
1950_in_science
American physicist (1901–1967)
elements of atomic number greater than 92"—eight years before the first transuranium element was synthesized. In the same letter, he predicted the nuclear reaction
Robert_J._Van_de_Graaff
Row 6 of the periodic table
(1 oz) at given time, astatine is the least abundant element in Earth's crust among non-transuranium elements. Among astatine isotopes, four (with mass
Period_6_element
Chemical element with atomic number 111 (Rg)
OCLC 48965418. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78-326244-1. Kragh
Roentgenium
McMillan (1907–1991), American physicist, the first to produce a transuranium element, neptunium, 1951 Nobel Prize in Chemistry Lise Meitner (1878–1968)
List_of_chemists
Atomic nucleus that is very far from being spherical
called hyperdeformed. Semi-empirical mass formula (liquid drop model) Transuranium element Åberg, Sven (1993-05-31). "Superdeformed nuclei". Nuclear Physics
Superdeformation
Etymology of chemical elements
(one place down from a known element in the table), and is sometimes used in discussions about any more undiscovered element. For example, darmstadtium
List of chemical element name etymologies
List_of_chemical_element_name_etymologies
Chemical element with atomic number 114 (Fl)
is a synthetic chemical element; it has symbol Fl and atomic number 114. It is an extremely radioactive, superheavy element, named after the Flerov Laboratory
Flerovium
American chemist (1912–1999)
whose involvement in the synthesis, discovery and investigation of ten transuranium elements earned him a share of the 1951 Nobel Prize in Chemistry. His
Glenn_T._Seaborg
Abelson identify neptunium, the lightest and first synthesized transuranium element, found in the products of uranium fission. McMillan would found a
Timeline_of_chemistry
Breakdown of nuclear fission results
element, in order by atomic number. Neutron capture by the nuclear fuel in nuclear reactors and atomic bombs also produces actinides and transuranium
Fission_products_(by_element)
Chemical element with atomic number 105 (Db)
ISBN 978-0-7506-7463-8. Hoffman, D. C. (1996). The Transuranium Elements: From Neptunium and Plutonium to Element 112 (PDF) (Report). Lawrence Livermore National
Dubnium
Set of adjacent groups
configuration is ns1–2. Helium is an s-element, but nearly always finds its place to the far right in group 18, above the p-element neon. Each row of the table has
Block_(periodic_table)
Fourth row in the periodic table of chemical elements
Period 4 in the periodic table A period 4 element is one of the chemical elements in the fourth row (or period) of the periodic table of the chemical
Period_4_element
Conversion of an atom from one element to another
transmutation is the conversion of one chemical element or an isotope into another chemical element. Nuclear transmutation occurs in any process where
Nuclear_transmutation
Group of chemical elements
Transplutonium elements – Elements with atomic number greater than 94. Transuranium elements – Elements with atomic number greater than 92. Valve metal -
Names for sets of chemical elements
Names_for_sets_of_chemical_elements
Temporary name assigned to predicted chemical elements
A systematic element name is the temporary name assigned to an unknown or recently synthesized chemical element. A systematic symbol is also derived from
Systematic_element_name
the 1951 Nobel Prize in Chemistry for being the first to produce a transuranium element, neptunium Robert Andrews Millikan California Beta, 1891 president
List_of_Tau_Beta_Pi_members
Any of the chemical elements in the second row of the periodic table
Period 2 in the periodic table A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the chemical
Period_2_element
Number of protons found in the nucleus of an atom
charge number (symbol Z, from the German Zahl, "number") of a chemical element is the charge number of its atomic nucleus. For ordinary nuclei composed
Atomic_number
Any element in row 7 of the periodic table
Period 7 in the periodic table A period 7 element is one of the chemical elements in the seventh row (or period) of the periodic table of the chemical
Period_7_element
French family
"The New Element Curium (Atomic Number 96)" (PDF). NNES PPR (National Nuclear Energy Series, Plutonium Project Record). The Transuranium Elements: Research
Curie_family
Fifth row of the periodic table
Period 5 in the periodic table A period 5 element is one of the chemical elements in the fifth row (or period) of the periodic table of the chemical elements
Period_5_element
Chemical element with atomic number 116 (Lv)
Livermorium is a synthetic chemical element; it has symbol Lv and atomic number 116. It is an extremely radioactive element that has only been created in laboratories
Livermorium
Group of chemical elements
7th period". Proceedings of the Moscow Symposium on the Chemistry of Transuranium Elements: 257–263. doi:10.1016/B978-0-08-020638-7.50053-1. ISBN 978-0-08-020638-7
Group_3_element
Chemical element with atomic number 110 (Ds)
Ghiorso; Darleane, Hoffman C; Glenn, Seaborg T (January 21, 2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78326-244-1. Corish
Darmstadtium
Third row of the periodic table
Period 3 in the periodic table A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the chemical elements
Period_3_element
American manufacturer, 1946–2005
the top priority for accelerator research. The proposed 20-megavolt Transuranium Accelerator (XTU) pushed HVEC accelerators towards this frontier. HVEC
High Voltage Engineering Corporation
High_Voltage_Engineering_Corporation
Chemical element with atomic number 104 (Rf)
OCLC 48965418. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78-326244-1. Kragh
Rutherfordium
American nuclear radiation enthusiast (1976–2016)
by Ghiorso, who has been involved in the discovery of about a dozen transuranium elements. David Hahn at Find a Grave David Hahn the Boy Who Built a Nuclear
David_Hahn
Chemical element with atomic number 107 (Bh)
synthetic chemical element; it has symbol Bh and atomic number 107. It is named after Danish physicist Niels Bohr. As a synthetic element, it can be created
Bohrium
Element in first row of periodic table
Period 1 in the periodic table A period 1 element is one of the chemical elements in the first row (or period) of the periodic table of the chemical elements
Period_1_element
Disputes between American and Soviet scientists over element naming
(in German). Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. pp. 389–394. ISBN 978-1-78326-244-1
Transfermium_Wars
Chemical element with atomic number 109 (Mt)
Meitnerium is a synthetic chemical element; it has symbol Mt and atomic number 109. It is an extremely radioactive synthetic element (not naturally occurring,
Meitnerium
history. Plutonium and Other Transuranium Elements (Washington, D.C.: U.S. Government Printing Office, 1948). The New Element Americium (Atomic Number 95)
Glenn_T._Seaborg_bibliography
Chemical element with atomic number 112 (Cn)
OCLC 48965418. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78-326244-1. Kragh
Copernicium
Chemical element with atomic number 108 (Hs)
найден в природе" [New transuranium found in nature]. Nauka i Zhizn (in Russian). 2: 102–106. Kulakov, V. M. (1970). "Has element 108 been discovered?"
Hassium
Russian chemist (1834–1907)
yet to be discovered (germanium, gallium, and scandium). The synthetic element mendelevium is named in his honor. Mendeleev was born in the village of
Dmitri_Mendeleev
Property of some chemical elements to exist in two or more different forms
storage). A seventh plutonium allotrope exists at very high pressures. The transuranium metals Np, Am, and Cm are also allotropic. Promethium, americium, berkelium
Allotropy
Misidentified chemical elements
History of nuclear fission Sime, Ruth Lewin (2000). "The Search for Transuranium Elements and the Discovery of Nuclear Fission". Physics in Perspective
Ausenium_and_hesperium
Theoretical chemical element with atomic number 121 (Ubu)
OCLC 48965418. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. ISBN 978-1-78-326244-1. Kragh
Unbiunium
Group of elements in the periodic table
September 2016. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. Imperial College Press. pp. 369–399. ISBN 978-1-86094-087-3
Group_5_element
Series of radioactive decays
.339D. doi:10.1146/annurev-nucl-010722-074615. Koch, Lothar (2000). Transuranium Elements, in Ullmann's Encyclopedia of Industrial Chemistry. Wiley. doi:10
Decay_chain
Development of the table of chemical elements
Science. 26: 56–61. Hoffman, D. C. (1996). The Transuranium Elements: From Neptunium and Plutonium to Element 112 (PDF). NATO Advanced Study Institute on
History_of_the_periodic_table
Term used for certain metallic elements
term heavy metal is sometimes used interchangeably with the term "heavy element". For example, in discussing the history of nuclear chemistry, Magee noted
Heavy_metals
Elements predicted but not found in 1869
and 3, depending upon whether the predicted element was one, two, or three places down from the known element of the same group in his table. For example
Mendeleev's predicted elements
Mendeleev's_predicted_elements
American chemist (1920–1973)
(National Nuclear Energy Series, Plutonium Project Record), Vol. 14 B The Transuranium Elements: Research Papers, Paper No. 22.1, McGraw-Hill Book Co., Inc
Ralph_A._James
11578/frib/2279152. Hoffman, D.C; Ghiorso, A.; Seaborg, G.T. (2000). The Transuranium People: The Inside Story. Imperial College Press. pp. 425–431. ISBN 978-1-86094-087-3
Isotopes_of_oganesson
Tendency of an atom to attract a shared pair of electrons
Electronegativity, symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical
Electronegativity
American nuclear scientist
Hoffman, Darleane C.; Ghiorso, Albert; Seaborg, Glenn T. (2000). The Transuranium People: The Inside Story. World Scientific. Bibcode:2000tpis.book...
Albert_Ghiorso
ISSN 2100-014X. Hoffman, D.C; Ghiorso, A.; Seaborg, G.T. (2000). The Transuranium People: The Inside Story. Imperial College Press. ISBN 978-1-86094-087-3
Isotopes_of_flerovium
Category of chemical elements
In the context of the periodic table, a nonmetal is a chemical element that mostly lacks distinctive metallic properties. Physically, nonmetals range
Nonmetal
Prediction in nuclear physics
did not make any definitive observations, he hypothesized in 1931 that transuranium elements around Z = 100 or Z = 108 may be relatively long-lived and possibly
Island_of_stability
Armenian and Russian nuclear physicist (born 1933)
19 June 2017. Hoffman, D. C.; Ghiorso, A.; Seaborg, G. T. (2000). The Transuranium People: The Inside Story. World Scientific. pp. 187–189. ISBN 978-1-78-326244-1
Yuri_Oganessian
Number of protons or neutrons that make a nucleus particularly stable
decay. The unusual stability of isotopes having magic numbers means that transuranium elements could theoretically be created with extremely large nuclei and
Magic_number_(physics)
Hoffman, Darleane C.; Ghiorso, Albert; Seaborg, Glenn T. (2000). The Transuranium People: The Inside Story. World Scientific. p. 367. ISBN 978-1-78-326244-1
Isotopes_of_livermorium
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