Flerovium is a synthetic chemical element also known as eka-lead. It has the symbol Fl and has the atomic number 114. It is a radioactive superheavy element.
Quick Facts Pronunciation, Mass number ...
Flerovium, 00Fl|
Pronunciation | |
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Mass number | [289] (unconfirmed: 290) |
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Group | group 14 (carbon group) |
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Period | period 7 |
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Block | p-block |
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Electron configuration | [Rn] 5f14 6d10 7s2 7p2 (predicted)[3] (predicted) |
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Electrons per shell | 2, 8, 18, 32, 32, 18, 4 (predicted) |
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Phase at STP | gas (predicted)[3] |
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Boiling point | ~ 210 K (~ −60 °C, ~ −80 °F) [4][5] |
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Density when liquid (at m.p.) | 14 g/cm3 (predicted)[6] |
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Heat of vaporization | 38 kJ/mol (predicted)[6] |
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Oxidation states | (0), (+1), (+2), (+4), (+6) (predicted)[3][7][8] |
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Ionization energies | - 1st: 832.2 kJ/mol (predicted)[9]
- 2nd: 1600 kJ/mol (predicted)[6]
- 3rd: 3370 kJ/mol (predicted)[6]
- (more)
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Atomic radius | empirical: 180 pm (predicted)[3][6] |
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Covalent radius | 171–177 pm (extrapolated)[10] |
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Natural occurrence | synthetic |
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Crystal structure | face-centered cubic (fcc) (predicted)[11] |
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CAS Number | 54085-16-4 |
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Naming | after Flerov Laboratory of Nuclear Reactions (itself named after Georgy Flyorov)[12] |
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Discovery | Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) (1999) |
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Category: Flerovium | references |
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Flerovium does not exist in nature. It is made from a nuclear reaction between plutonium and calcium. The reaction that happens is a fusion reaction.