Les asses
Complete the table given below and answer the follow
questions (Symbols are not real).
Element
Atomic number
Electronic configuratio
9
2,7
17
0 0 0 0
10
2.,6...
2.2....
2........
12
Answers
Answer:
I don't know friend sorry
Answer:
Flerovium is a superheavy artificial chemical element with the symbol Fl and atomic number 114. It is an extremely radioactive synthetic element. The element is named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna, Russia, where the element was discovered in 1998. The name of the laboratory, in turn, honours the Russian physicist Georgy Flyorov (Флёров in Cyrillic, hence the transliteration of "yo" to "e"). The name was adopted by IUPAC on 30 May 2012.
Flerovium, 114Fl
Flerovium
Pronunciation
/flɪˈroʊviəm/[1] (flə-ROH-vee-əm)
Mass number
[289] (unconfirmed: 290)
Flerovium in the periodic table
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminium
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Potassium
Calcium
Scandium
Titanium
Vanadium
Chromium
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Gallium
Germanium
Arsenic
Selenium
Bromine
Krypton
Rubidium
Strontium
Yttrium
Zirconium
Niobium
Molybdenum
Technetium
Ruthenium
Rhodium
Palladium
Silver
Cadmium
Indium
Tin
Antimony
Tellurium
Iodine
Xenon
Caesium
Barium
Lanthanum
Cerium
Praseodymium
Neodymium
Promethium
Samarium
Europium
Gadolinium
Terbium
Dysprosium
Holmium
Erbium
Thulium
Ytterbium
Lutetium
Hafnium
Tantalum
Tungsten
Rhenium
Osmium
Iridium
Platinum
Gold
Mercury (element)
Thallium
Lead
Bismuth
Polonium
Astatine
Radon
Francium
Radium
Actinium
Thorium
Protactinium
Uranium
Neptunium
Plutonium
Americium
Curium
Berkelium
Californium
Einsteinium
Fermium
Mendelevium
Nobelium
Lawrencium
Rutherfordium
Dubnium
Seaborgium
Bohrium
Hassium
Meitnerium
Darmstadtium
Roentgenium
Copernicium
Nihonium
Flerovium
Moscovium
Livermorium
Tennessine
Oganesson
Pb
↑
Fl
↓
(Uho)
nihonium ← flerovium → moscovium
Atomic number (Z)
114
Group
group 14 (carbon group)
Period
period 7
Block
p-block
Element category
Unknown chemical properties, but probably a post-transition metal; possibly a metalloid[2]
Electron configuration
[Rn] 5f14 6d10 7s2 7p2 (predicted)[3]
Electrons per shell
2, 8, 18, 32, 32, 18, 4 (predicted)
Physical properties
Phase at STP
gas (predicted)[3]
Boiling point
~ 210 K (~ −60 °C, ~ −80 °F) [4][5]
Density when liquid (at m.p.)
14 g/cm3 (predicted)[6]
Heat of vaporization
38 kJ/mol (predicted)[6]
Atomic properties
Oxidation states
(0), (+1), (+2), (+4), (+6) (predicted)[3][6][7]
Ionization energies
1st: 832.2 kJ/mol (predicted)[8]
2nd: 1600 kJ/mol (predicted)[6]
3rd: 3370 kJ/mol (predicted)[6]
(more)
Atomic radius
empirical: 180 pm (predicted)[3][6]
Covalent radius
171–177 pm (extrapolated)[9]
Other properties
Natural occurrence
synthetic
Crystal structure
face-centred cubic (fcc)Face-centred cubic crystal structure for flerovium
(predicted)[10]
CAS Number
54085-16-4
History
Naming
after Flerov Laboratory of Nuclear Reactions (itself named after Georgy Flyorov)[11]
Discovery
Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) (1999)
Main isotopes of flerovium
Isotope Abundance Half-life (t1/2) Decay mode Product
284Fl[12][13] syn 2.5 ms SF
285Fl[14] syn 0.10 s α 281Cn
286Fl syn 0.12 s 40% α 282Cn
60% SF
287Fl[15] syn 0.48 s α 283Cn
EC? 287Nh
288Fl syn 0.66 s α 284Cn
289Fl syn 1.9 s α 285Cn
290Fl[16][17] syn 19 s? EC 290Nh
α 286Cn
Category Category: Flerovium
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In the periodic table of the elements, it is a transactinide element in the p-block. It is a member of the 7th period and is the heaviest known member of the carbon group; it is also the heaviest element whose chemistry has been investigated. Initial chemical studies performed in 2007–2008 indicated that flerovium was unexpectedly volatile for a group 14 element;[18] in preliminary results it even seemed to exhibit properties similar to those of the noble gases.[19] More recent results show that flerovium's reaction with gold is similar to that of copernicium, showing that it is a very volatile element that may even be gaseous at standard temperature and pressure, that it would show metallic properties, consistent with it being the heavier homologue of lead, and that it would be the least reactive metal in group 14. The question of whether flerovium behaves more like a metal or a noble gas is still unresolved as of 2018.
About 90 atoms of flerovium have been observed: 58 were synthesized directly, and the rest were made from the radioactive decay of heavier elements. All of these flerovium atoms have been shown to have mass numbers from 284 to 290. The most stable known flerovium isotope, flerovium-289, has a half-life of around 1.9 seconds, but it is possible that the unconfirmed flerovium-290 with one extra neutron may have a longer half-life of 19 seconds; this would be one of the longest half-lives of any isotope of any element at these farthest reaches of the periodic table. Flerovium is predicted to be near the centre of the theorized island of stability, and it is expected that heavier flerovium isotopes, especially the possibly doubly magic flerovium-298, may have even longer half-lives.
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