Francij[um]

Francij[um] (Fr)

hemijski element sa simbolom Fr i atomskim brojem 87
Atomic Number87
Atomic Weight223
Maseni broj197
Group1
Period7
Blocks
Proton87 p+
Neutron110 n0
Elektron87 e-
Animated Bohrov model atoma of Fr (Francij[um])

Physical Property

Atomski Radijus
Molarni volumen
covalent radius
223 pm
Metallic Radius
Ionski radijus
180 pm
Crystal Radius
194 pm
Van der Waalsov radijus
348 pm
gustoća
1,87 g/cm³

Chemical Property

energija
proton affinity
electron affinity
ionization energy
4,0727409 eV/particle
ionization energy of Fr (Francij[um])
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
Elektron
electron shell2, 8, 18, 32, 18, 8, 1
Bohrov model atoma: Fr (Francij[um])
Valentni elektron1
Lewis structure: Fr (Francij[um])
electron configuration[Rn] 7s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s1
Enhanced Bohrov model atoma of Fr (Francij[um])
Orbital Diagram of Fr (Francij[um])
oksidacijsko stanje1
Elektronegativnost
0.7
Electrophilicity Index
0,7242688826969913 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
294,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearance
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Specifična električna provodljivost
electrical resistivity
Superprovodljivost
Magnetizam
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal Structure (BCC)
lattice constant
Lattice Angles
mechanical property
Tvrdoća
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Brzina zvuka
klasifikacija
CategoryAlkali metals, Alkali metals
CAS GroupIA
IUPAC GroupIA
Glawe Number7
Mendeleev Number6
Pettifor Number7
Geochemical ClassU/Th decay series
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
317,8 ± 2,4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
Kvantni brojevi2S1/2
space group ()

Isotopes of Francium

Stable Isotopes0
Unstable Isotopes37
Natural Isotopes0

197Fr

Maseni broj197
broj neutrona110
relative atomic mass
197,011008086 ± 0,000060584 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,3 ± 1,9 ms
spin7/2
nuclear quadrupole moment
datum otkrića2013
parity-

decay modeintensity
α (α emission)100%

198Fr

Maseni broj198
broj neutrona111
relative atomic mass
198,010282081 ± 0,000033419 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
15 ± 3 ms
spin3
nuclear quadrupole moment
datum otkrića2013
parity+

decay modeintensity
α (α emission)100%

199Fr

Maseni broj199
broj neutrona112
relative atomic mass
199,007269384 ± 0,000014734 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,6 ± 2,2 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1999
parity+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

200Fr

Maseni broj200
broj neutrona113
relative atomic mass
200,006584666 ± 0,000032769 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
47,5 ± 2,8 ms
spin3
nuclear quadrupole moment
datum otkrića1995
parity+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)
β+ SF (β+-delayed fission)

201Fr

Maseni broj201
broj neutrona114
relative atomic mass
201,003852491 ± 0,000009747 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
62,8 ± 1,9 ms
spin9/2
nuclear quadrupole moment
datum otkrića1980
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

202Fr

Maseni broj202
broj neutrona115
relative atomic mass
202,003329637 ± 0,000006476 Da
g-factor
1,3 ± 0,016666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
372 ± 12 ms
spin3
nuclear quadrupole moment
datum otkrića1980
parity+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

203Fr

Maseni broj203
broj neutrona116
relative atomic mass
203,000940867 ± 0,000006689 Da
g-factor
0,83111111111111 ± 0,0088888888888889
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
550 ± 10 ms
spin9/2
nuclear quadrupole moment
-0,47 ± 0,02
datum otkrića1967
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

204Fr

Maseni broj204
broj neutrona117
relative atomic mass
204,000651972 ± 0,000026389 Da
g-factor
1,33 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,75 ± 0,26 s
spin3
nuclear quadrupole moment
-0,141 ± 0,009
datum otkrića1964
parity+

decay modeintensity
α (α emission)96%
β+ (β+ decay; β+ = ϵ + e+)

205Fr

Maseni broj205
broj neutrona118
relative atomic mass
204,998593854 ± 0,000008399 Da
g-factor
0,84444444444444 ± 0,0066666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,9 ± 0,07 s
spin9/2
nuclear quadrupole moment
-0,305 ± 0,018
datum otkrića1964
parity-

decay modeintensity
α (α emission)98.5%
β+ (β+ decay; β+ = ϵ + e+)1.5%

206Fr

Maseni broj206
broj neutrona119
relative atomic mass
205,998661441 ± 0,000029856 Da
g-factor
1,3233333333333 ± 0,016666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3
nuclear quadrupole moment
-0,354 ± 0,009
datum otkrića1964
parity+

decay modeintensity
α (α emission)88.4%
β+ (β+ decay; β+ = ϵ + e+)11.6%

207Fr

Maseni broj207
broj neutrona120
relative atomic mass
206,99694145 ± 0,000018847 Da
g-factor
0,86 ± 0,0088888888888889
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,8 ± 0,1 s
spin9/2
nuclear quadrupole moment
-0,24 ± 0,02
datum otkrića1964
parity-

decay modeintensity
α (α emission)95%
β+ (β+ decay; β+ = ϵ + e+)

208Fr

Maseni broj208
broj neutrona121
relative atomic mass
207,997139082 ± 0,000012514 Da
g-factor
0,67285714285714 ± 0,0057142857142857
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
59,1 ± 0,3 s
spin7
nuclear quadrupole moment
0,052 ± 0,011
datum otkrića1964
parity+

decay modeintensity
α (α emission)89%
β+ (β+ decay; β+ = ϵ + e+)11%

209Fr

Maseni broj209
broj neutrona122
relative atomic mass
208,995939701 ± 0,000012349 Da
g-factor
0,87333333333333 ± 0,011111111111111
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50,5 ± 0,7 s
spin9/2
nuclear quadrupole moment
-0,26 ± 0,02
datum otkrića1964
parity-

decay modeintensity
α (α emission)89%
β+ (β+ decay; β+ = ϵ + e+)11%

210Fr

Maseni broj210
broj neutrona123
relative atomic mass
209,996410596 ± 0,000014407 Da
g-factor
0,73 ± 0,0083333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,18 ± 0,06 m
spin6
nuclear quadrupole moment
0,21 ± 0,02
datum otkrića1964
parity+

decay modeintensity
α (α emission)71%
β+ (β+ decay; β+ = ϵ + e+)

211Fr

Maseni broj211
broj neutrona124
relative atomic mass
210,995555189 ± 0,000012872 Da
g-factor
0,88222222222222 ± 0,011111111111111
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,1 ± 0,02 m
spin9/2
nuclear quadrupole moment
-0,21 ± 0,02
datum otkrića1964
parity-

decay modeintensity
α (α emission)87%
β+ (β+ decay; β+ = ϵ + e+)13%

212Fr

Maseni broj212
broj neutrona125
relative atomic mass
211,99622542 ± 0,000009419 Da
g-factor
0,918 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20 ± 0,6 m
spin5
nuclear quadrupole moment
-0,1 ± 0,002
datum otkrića1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)57%
α (α emission)43%

213Fr

Maseni broj213
broj neutrona126
relative atomic mass
212,99618441 ± 0,000005053 Da
g-factor
0,88666666666667 ± 0,0022222222222222
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
34,14 ± 0,06 s
spin9/2
nuclear quadrupole moment
-0,138 ± 0,003
datum otkrića1964
parity-

decay modeintensity
α (α emission)99.44%
β+ (β+ decay; β+ = ϵ + e+)0.56%

214Fr

Maseni broj214
broj neutrona127
relative atomic mass
213,998971193 ± 0,000009145 Da
g-factor
0,241 ± 0,016
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,51 ± 0,13 ms
spin1
nuclear quadrupole moment
datum otkrića1967
parity-

decay modeintensity
α (α emission)100%

215Fr

Maseni broj215
broj neutrona128
relative atomic mass
215,000341534 ± 0,000007585 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
90 ± 4 ns
spin9/2
nuclear quadrupole moment
datum otkrića1970
parity-

decay modeintensity
α (α emission)100%

216Fr

Maseni broj216
broj neutrona129
relative atomic mass
216,003189523 ± 0,00000448 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
700 ± 20 ns
spin1
nuclear quadrupole moment
datum otkrića1970
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

217Fr

Maseni broj217
broj neutrona130
relative atomic mass
217,00463198 ± 0,000007011 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22 ± 5 us
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

decay modeintensity
α (α emission)100%

218Fr

Maseni broj218
broj neutrona131
relative atomic mass
218,00757862 ± 0,000004546 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,4 ± 0,5 ms
spin1
nuclear quadrupole moment
datum otkrića1949
parity-

decay modeintensity
α (α emission)100%

219Fr

Maseni broj219
broj neutrona132
relative atomic mass
219,009250664 ± 0,00000738 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22,5 ± 1,7 ms
spin9/2
nuclear quadrupole moment
-1,19 ± 0,02
datum otkrića1948
parity-

decay modeintensity
α (α emission)100%

220Fr

Maseni broj220
broj neutrona133
relative atomic mass
220,012326789 ± 0,000004324 Da
g-factor
-0,66 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
27,4 ± 0,3 s
spin1
nuclear quadrupole moment
0,487 ± 0,008
datum otkrića1948
parity+

decay modeintensity
α (α emission)100%
β (β decay)0.35%

221Fr

Maseni broj221
broj neutrona134
relative atomic mass
221,014253714 ± 0,000005245 Da
g-factor
0,628 ± 0,008
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,801 ± 0,005 m
spin5/2
nuclear quadrupole moment
-1,02 ± 0,03
datum otkrića1947
parity-

decay modeintensity
α (α emission)100%
β (β decay)0.0048%
14C8.8%

222Fr

Maseni broj222
broj neutrona135
relative atomic mass
222,017582615 ± 0,000008 Da
g-factor
0,315 ± 0,005
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,2 ± 0,3 m
spin2
nuclear quadrupole moment
0,51 ± 0,04
datum otkrića1975
parity-

decay modeintensity
β (β decay)100%

223Fr

Maseni broj223
broj neutrona136
relative atomic mass
223,019734241 ± 0,000002073 Da
g-factor
0,77333333333333 ± 0,0066666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22 ± 0,07 m
spin3/2
nuclear quadrupole moment
1,18 ± 0,02
datum otkrića1939
parity-

decay modeintensity
β (β decay)100%
α (α emission)0.006%

224Fr

Maseni broj224
broj neutrona137
relative atomic mass
224,023348096 ± 0,000012 Da
g-factor
0,4 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,33 ± 0,1 m
spin1
nuclear quadrupole moment
0,523 ± 0,009
datum otkrića1969
parity-

decay modeintensity
β (β decay)100%

225Fr

Maseni broj225
broj neutrona138
relative atomic mass
225,025572466 ± 0,000012847 Da
g-factor
0,70666666666667 ± 0,0066666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,95 ± 0,14 m
spin3/2
nuclear quadrupole moment
1,33 ± 0,02
datum otkrića1969
parity-

decay modeintensity
β (β decay)100%

226Fr

Maseni broj226
broj neutrona139
relative atomic mass
226,029544512 ± 0,000006688 Da
g-factor
0,0712 ± 0,0014
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
48,5 ± 0,7 s
spin1
nuclear quadrupole moment
-1,37 ± 0,03
datum otkrića1969
parity-

decay modeintensity
β (β decay)100%

227Fr

Maseni broj227
broj neutrona140
relative atomic mass
227,031865413 ± 0,000006332 Da
g-factor
2,98 ± 0,04
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,47 ± 0,03 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1972
parity+

decay modeintensity
β (β decay)100%

228Fr

Maseni broj228
broj neutrona141
relative atomic mass
228,035839433 ± 0,000007226 Da
g-factor
-0,38 ± 0,005
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
38 ± 1 s
spin2
nuclear quadrupole moment
2,41 ± 0,06
datum otkrića1972
parity-

decay modeintensity
β (β decay)100%

229Fr

Maseni broj229
broj neutrona142
relative atomic mass
229,038291443 ± 0,000005368 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50,2 ± 0,4 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1975
parity+

decay modeintensity
β (β decay)100%

230Fr

Maseni broj230
broj neutrona143
relative atomic mass
230,042390787 ± 0,000007022 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,1 ± 0,5 s
spin2
nuclear quadrupole moment
datum otkrića1987
parity+

decay modeintensity
β (β decay)100%

231Fr

Maseni broj231
broj neutrona144
relative atomic mass
231,045175353 ± 0,0000083 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,6 ± 0,6 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1985
parity+

decay modeintensity
β (β decay)100%

232Fr

Maseni broj232
broj neutrona145
relative atomic mass
232,049461219 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,5 ± 0,6 s
spin5
nuclear quadrupole moment
datum otkrića1990
parity

decay modeintensity
β (β decay)100%
β SF (β-delayed fission)

233Fr

Maseni broj233
broj neutrona146
relative atomic mass
233,052517833 ± 0,000021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
900 ± 100 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
Electron shell 087 francium

historija

otkrivač ili izumiteljMarguerite Derey
mjesto otkrićaFrance
datum otkrića1939
EtimologijaNamed for France, the nation of its discovery.
pronunciationFRAN-si-em (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
natural abundance (ljudsko tijelo)
0 %
natural abundance (Meteoroidi)
natural abundance (Sunce)
Abundance in Universe
0 %

Nuclear Screening Constants