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Chemical element with atomic number 87 (Fr)
Francium is a chemical element; it has symbol Fr and atomic number 87. It is extremely radioactive; its most stable isotope, francium-223 (originally
Francium
Theoretical chemical element with atomic number 119 (Uue)
Ununennium, also known as eka-francium or element 119, is a hypothetical chemical element; it has symbol Uue and atomic number 119. Ununennium and Uue
Ununennium
Francium (87Fr) has no stable isotopes, so a standard atomic weight cannot be given. Its most stable isotope is 223Fr with a half-life of 22 minutes, occurring
Isotopes_of_francium
Group of highly reactive chemical elements
lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Together with hydrogen they constitute group 1, which lies in the
Alkali_metal
20th-century French physicist
physicist and a student of Marie Curie. In 1939, Perey discovered the element francium by purifying samples of lanthanum that contained actinium. In 1962, she
Marguerite_Perey
Any element in row 7 of the periodic table
contains 32 elements, tied for the most with period 6, beginning with francium and ending with oganesson, the heaviest element currently discovered. As
Period_7_element
Chemical compound
Francium hydroxide is a hypothetical inorganic compound with a chemical formula FrOH. It is a hydroxide of francium. It probably can be produced by reacting
Francium_hydroxide
however, no refinements have been made for francium as no experiment has been conducted. However, francium is expected and, to a small extent, observed
Electronegativities of the elements (data page)
Electronegativities_of_the_elements_(data_page)
Topics referred to by the same term
preceding 88 one of the years 87 BC, AD 87, 1987, 2087 Atomic number 87, francium Intel 8087, a floating-point coprocessor 87; Common gasoline rating 87
87
Chemical compound
Francium chloride is a radioactive chemical compound with the formula FrCl. It is a salt predicted to be a white solid and is soluble in water. Its properties
Francium_chloride
Tendency of an atom to attract a shared pair of electrons
however, no refinements have been made for francium as no experiment has been conducted. However, francium is expected and, to a small extent, observed
Electronegativity
Chemical element with atomic number 85 (At)
the periodic table, only francium is less stable, and all the astatine isotopes more stable than the longest-lived francium isotopes (205–211At) are synthetic
Astatine
Tabular arrangement of the chemical elements
observed in macroscopic quantities in its pure form, nor has astatine; francium (element 87) has been only photographed in the form of light emitted from
Periodic_table
Element whose atomic number is greater than 92
and francium; all four occur in nature, but only in very minor branches of the uranium and thorium decay chains, and thus all except francium were first
Transuranium_element
Compounds containing at least one atom of francium
Francium compounds are compounds containing the element francium (Fr). Due to francium being very unstable, its salts are only known to a small extent
Francium_compounds
Uranium-rich oxide mineral
produced by the spontaneous fission of uranium-238. Francium can also be found in uraninite at 1 francium atom for every 1 × 1018 uranium atoms in the ore
Uraninite
Topics referred to by the same term
aircraft Flame retardant Flash release, a technique used in wine pressing Francium (symbol Fr), a chemical element Franklin (unit) (Fr), a unit of electrical
FR
Day of the year
Sarah S. (January 2018). "Marguerite Perey (1909–1975): Discoverer of Francium". ACS Symposium Series. 1311: 245–263. doi:10.1021/bk-2018-1311.ch010.
May_13
America." [4] - "Four other countries have elements named after them: francium for France, germanium for Germany, polonium for Poland, and americium for
List of chemical elements named after places
List_of_chemical_elements_named_after_places
ZnF2, ZrF4 Francium oxide – Fr2O Francium chloride – FrCl Francium bromide – FrBr Francium iodide – FrI Francium carbonate – Fr2CO3 Francium hydroxide
List_of_inorganic_compounds
hour. This includes isotopes of the first 105 elements, except for 87 (francium), 102 (nobelium) and 104 (rutherfordium). More than 5,000 nuclides have
List_of_nuclides
Chemical element with atomic number 88 (Ra)
франция [Analytical Chemistry of Technetium, Promethium, Astatine, and Francium] (in Russian). Nauka. p. 118. Zerriffi, Hisham (January 1996). "Tritium:
Radium
Fictional material
Generation episode, it has the atomic number 87 (which in reality belongs to francium), and the chemical symbol Dt.[failed verification] In reality, dilithium
Dilithium_(Star_Trek)
conclusion a few years earlier.) Francium In 1939, Marguerite Perey, a student of Marie Curie, discovered the element francium by purifying samples of lanthanum
List of inventions and discoveries by women
List_of_inventions_and_discoveries_by_women
Metal or alloy that is liquid at room temperature
(30 °C [86 °F]); and rubidium (Rb) (39 °C [102 °F]). The radioactive metal francium (Fr) is probably liquid close to room temperature as well. Calculations
Liquid_metal
Topics referred to by the same term
from virginium, a rejected proposed name and abbreviation for the element francium VI, 6 in Roman numerals vide infra, Latin for "see below" Visual impairment
VI
Chemical substance not composed of simpler ones
technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94. These 94 elements
Chemical_element
Isotope of uranium
occurring uranium-235, this series includes isotopes of astatine, bismuth, francium, lead, polonium, protactinium, radium, radon, thallium, and thorium, all
Uranium-235
Chemical compound
solubility played an important role in the characterization of francium as an alkali metal, as francium perchlorate coprecipitates with caesium perchlorate. When
Caesium_perchlorate
(1970). Analytical Chemistry of Technetium, Promethium, Astatine, and Francium. Translated by R. Kondor. Ann Arbor–Humphrey Science Publishers. p. 269
Boiling points of the elements (data page)
Boiling_points_of_the_elements_(data_page)
Discoverer Notes Alabamium Ab 85 Astatine 1931 Fred Allison Alkalinium 87 Francium 1926 Gerald J. F. Druce, Frederick H. Loring Anglohelvetium See Helvetium
List of misidentified chemical elements
List_of_misidentified_chemical_elements
Chemical element with atomic number 79 (Au)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Gold
69 actinium-217 69 francium-215 86 lead-196m1 <100 uranium-236m1 100 bismuth-199m2 100 curium-247m2 100.6 actinium-218m 103 francium-214m2 103 bismuth-201m3
List of radioactive nuclides by half-life
List_of_radioactive_nuclides_by_half-life
Chemical element with atomic number 17 (Cl)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Chlorine
Chemical element with atomic number 47 (Ag)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Silver
Chemical element with atomic number 26 (Fe)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Iron
Chemical element with atomic number 118 (Og)
calculations of electron affinities of the alkali atoms sodium to eka-francium (element 119)". Journal of Chemical Physics. 115 (6): 2389–92. Bibcode:2001JChPh
Oganesson
Chemical element with atomic number 92 (U)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Uranium
Topics referred to by the same term
conference of the Russian opposition Francium fluoride (FrF), a hypothetical fluoride of the highly radioactive element francium Frequency response function Frequency
FRF
for research. Most stable isotope, 223Fr, has half-life of 22 minutes. Francium has no commercial or medical uses. Radium was historically used in the
Prices_of_chemical_elements
Theories of quantum chemistry explained via relativistic mechanics
in compounds such as caesium auride. The slightly reduced reactivity of francium compared with caesium. About 10% of the lanthanide contraction is attributed
Relativistic quantum chemistry
Relativistic_quantum_chemistry
Chemical element with atomic number 90 (Th)
actinium (1227 °C) and protactinium (1568 °C). At the start of period 7, from francium to thorium, the melting points of the elements increase (as in other periods)
Thorium
Elements predicted but not found in 1869
theorists, and not only in Mendeleev's own predictions. Before the discovery, francium was referred to as eka-caesium, and astatine as eka-iodine. The official
Mendeleev's predicted elements
Mendeleev's_predicted_elements
Chemical process
that can incorporate the desired element. An example is the separation of francium from other radioactive elements by coprecipitating it with caesium salts
Coprecipitation
Chemical element with atomic number 74 (W)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Tungsten
Chemical element with atomic number 3 (Li)
(which are sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr)), lithium has a single valence electron that, in the presence of solvents
Lithium
Chemical element with atomic number 86 (Rn)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Radon
Ancient Indo-Aryan language of South Asia, mainly Indian subcontinent
provisional names to his predicted elements, like eka-boron being Gallium or eka-Francium being Ununennium. In the province of Bali in Indonesia, a number of educational
Sanskrit
Chemical element with atomic number 4 (Be)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Beryllium
Chemical element with atomic number 5 (B)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Boron
2010 book by Sam Kean
Sam Kean talks about francium, "magic elements" and the future of the periodic table. The most anyone has ever acquired of Francium is ten thousand atoms
The_Disappearing_Spoon
Data values of standard electrode potential
Aleksandrovich (1970). Analytical chemistry of technetium, promethium, astatine and francium. Ann Arbor: Ann Arbor-Humphrey Science Publishers. p. 237. ISBN 0-250-39923-7
Standard electrode potential (data page)
Standard_electrode_potential_(data_page)
Chemical elements that do not occur naturally
Promethium‡ Pm 61 1945 1965 Polonium Po 84 1898 Astatine‡ At 85 1940 1943 Francium Fr 87 1939 Radium Ra 88 1898 Actinium Ac 89 1902 Protactinium Pa 91 1913
Synthetic_element
Chemical element with atomic number 13 (Al)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Aluminium
Chemical element with atomic number 10 (Ne)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Neon
Chemical element with atomic number 39 (Y)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Yttrium
Chemical compound with formula NaCl
Lithium chloride Potassium chloride Rubidium chloride Caesium chloride Francium chloride Supplementary data page Sodium chloride (data page) Except where
Sodium_chloride
Chemical element with atomic number 61 (Pm)
франция (Analytical Chemistry of Technetium, Promethium, Astatine, and Francium) (in Russian). Nauka. 2013, E.R. Scerri,A tale of seven elements, Oxford
Promethium
Name substituted for an unknown name
table are used in some hospitals as a placeholder for patient names, ex. Francium Male. Hospitals also use placeholder names for newborn babies. Placeholder
Placeholder_name
Principal energy levels in atomic physics
filling in the known elements (respectively at rubidium, caesium, and francium), but they are not complete even at the heaviest known element, oganesson
Electron_shell
Chemical element with atomic number 80 (Hg)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Mercury_(element)
Chemical element with atomic number 41 (Nb)
1007/978-1-4684-6066-7_7. ISBN 978-1-4684-6066-7. Knapp, Brian (2002). Francium to Polonium. Atlantic Europe Publishing Company. p. 40. ISBN 0-7172-5677-4
Niobium
Chemical element with atomic number 46 (Pd)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Palladium
Periodic table of the elements with eight or more periods
more like rubidium and strontium than their immediate neighbours above, francium and radium. Another effect of the relativistic contraction of the 8s orbital
Extended_periodic_table
Chemical element with atomic number 44 (Ru)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Ruthenium
Chemical element with atomic number 83 (Bi)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Bismuth
Chemical element with atomic number 1 (H)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Hydrogen
Chemical element with atomic number 9 (F)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Fluorine
(1970). Analytical Chemistry of Technetium, Promethium, Astatine, and Francium. Translated by R. Kondor. Ann Arbor–Humphrey Science Publishers. p. 269
Melting points of the elements (data page)
Melting_points_of_the_elements_(data_page)
Isotope of actinium
(225Ac, Ac-225) is an isotope of actinium. It undergoes alpha decay to francium-221 with a half-life near 10 days, and is an intermediate decay product
Actinium-225
Chemical element with atomic number 29 (Cu)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Copper
Group 15 elements of the periodic table with valency 5
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Pnictogen
Chemical element with atomic number 56 (Ba)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Barium
Chemical element with atomic number 37 (Rb)
(1973). The Chemistry of Lithium, Sodium, Potassium, Rubidium, Cesium and Francium. Pergamon. doi:10.1016/c2013-0-05695-2. ISBN 978-0-08-018799-0. Cotton
Rubidium
Chemical element with atomic number 53 (I)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Iodine
Method of visualizing the relationship between elements
appear to be less well defined for period 7 than for other periods. Whilst francium and radium do show typical properties of groups 1 and 2, respectively,
Period_(periodic_table)
Potassium hydroxide (KOH) Rubidium hydroxide (RbOH) Caesium hydroxide (CsOH) Francium hydroxide (FrOH) Alkali hydroxides are formed in the reaction between alkali
Alkali_hydroxide
Chemical element with atomic number 115 (Mc)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Moscovium
Chemical element with atomic number 94 (Pu)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Plutonium
Column of elements in the periodic table of the chemical elements
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Group_(periodic_table)
Chemical element with atomic number 101 (Md)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Mendelevium
Chemical element with atomic number 55 (Cs)
liquid near room temperature. The others are rubidium (39 °C [102 °F]), francium (estimated at 27 °C [81 °F]), mercury (−39 °C [−38 °F]), and gallium (30 °C
Caesium
Chemical element with atomic number 77 (Ir)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Iridium
Chemical element with atomic number 14 (Si)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Silicon
Chemical element with atomic number 35 (Br)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Bromine
Type of material
structures (dark blue), or remain as single atoms (violet). Astatine (At), francium (Fr), and the elements from fermium (Fm) onwards are shown in gray because
Metal
Chemical element with atomic number 50 (Sn)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Tin
Chemical element with atomic number 27 (Co)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Cobalt
Chemical element with atomic number 8 (O)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Oxygen
Chemical element with atomic number 81 (Tl)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Thallium
Chemical element with atomic number 33 (As)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Arsenic
Chemical element with atomic number 76 (Os)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Osmium
Chemical element with atomic number 25 (Mn)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Manganese
Energy needed to remove an electron
single electron experiences the full net positive charge of the nucleus. Francium's ionization energy is higher than the precedent alkali metal, cesium. This
Ionization_energy
Chemical element with atomic number 43 (Tc)
in 1898 by Maria Sklodowska-Curie), astatine 85At (1940, in Berkeley), francium 87Fr (1939, in France), neptunium 93Np (1940, in Berkeley) and other actinides
Technetium
Chemical element with atomic number 45 (Rh)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Rhodium
Chemical element with atomic number 108 (Hs)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Hassium
Chemical element with atomic number 98 (Cf)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Californium
Most stable isotope of radon
2019. Fry, C.; Thoennessen, M. (2013). "Discovery of the astatine, radon, francium, and radium isotopes". Atomic Data and Nuclear Data Tables. 99 (5): 497–519
Radon-222
Chemical element with atomic number 75 (Re)
Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium
Rhenium
FRANCIUM
FRANCIUM
FRANCIUM
FRANCIUM
Girl/Female
Hindu
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Tamil, Telugu
Conquerer of the Suras
Girl/Female
Tamil
Devahasini | தேவாஹாஸீநீÂ
Girl/Female
Indian
Ray of East
Surname or Lastname
English
English : variant of Ottey.
Boy/Male
Tamil
Protector
Boy/Male
Hindu, Indian, Sanskrit
Penance; To Burn; Shine; Suffer
Surname or Lastname
English (mainly West Midlands)
English (mainly West Midlands) : habitational name from any of various places, for example Langstone in Devon and Hampshire, named with Old English lang ‘long’, ‘tall’ + stÄn ‘stone’, i.e. a menhir.
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Shining
Surname or Lastname
English
English : variant spelling of Wetherell.
FRANCIUM
FRANCIUM
FRANCIUM
FRANCIUM
FRANCIUM