Frantzioa (Fr)

Zenbaki atomikoa 87 duen elementu kimikoa. Metal alkalino erradioaktiboa da, eta frantzio-223a da bizitza luzeena duen isotopoa (21 minutuko erdibizitza)

Atomic Number	87
Atomic Weight	223
masa-zenbaki	197

Group	1
Period	7
Block	s

protoi	87 p⁺
neutroi	110 n⁰
elektroi	87 e^-

Animated Bohrren eredu atomikoa of Fr (Frantzioa)

Propietate Fisiko

Erradio Atomiko	258 pm
bolumen molar
Erradio Kobalente	223 pm 218 pm 260 pm
Metallic Radius
Erradio ioniko	180 pm
Crystal Radius	194 pm
Van der Waalsen erradio	348 pm 364 pm 348 pm 490 pm
dentsitatea	1,87 g/cm³

Magnitude Fisiko

{ERROR}

energia

proton affinity
Afinitate elektroniko	0,486 eV/particle
ionizazio energia	4,0727409 eV/particle 22,4 eV/particle 33 eV/particle 39,1 eV/particle 50 eV/particle 67 eV/particle 80 eV/particle 106 eV/particle 120 eV/particle 179 eV/particle 200 eV/particle 222,1 eV/particle 245 eV/particle 269 eV/particle 293 eV/particle 324 eV/particle 349 eV/particle 375 eV/particle 400 eV/particle 530 eV/particle 560 eV/particle 590 eV/particle 620 eV/particle 690 eV/particle 720 eV/particle 820 eV/particle 850 eV/particle 910 eV/particle 980 eV/particle 1.040 eV/particle 1.110 eV/particle 1.180 eV/particle 1.250 eV/particle 1.320 eV/particle 1.380 eV/particle 1.460 eV/particle 1.530 eV/particle 1.600 eV/particle 1.670 eV/particle 1.700 eV/particle 1.810 eV/particle 2.119 eV/particle 2.182 eV/particle 2.247 eV/particle 2.317 eV/particle 2.384 eV/particle 2.450 eV/particle 2.564 eV/particle 2.631 eV/particle 2.706 eV/particle 2.774 eV/particle 3.049 eV/particle 3.115 eV/particle 3.190 eV/particle 3.257 eV/particle 3.556 eV/particle 3.635 eV/particle 3.828 eV/particle 3.907 eV/particle 6.365 eV/particle 6.516 eV/particle 6.678 eV/particle 6.849 eV/particle 7.013 eV/particle 7.172 eV/particle 7.500 eV/particle 7.670 eV/particle 7.850 eV/particle 8.020 eV/particle 8.500 eV/particle 8.640 eV/particle 8.800 eV/particle 8.950 eV/particle 9.890 eV/particle 10.070 eV/particle 10.420 eV/particle 10.580 eV/particle 22.330 eV/particle 22.730 eV/particle 23.170 eV/particle 23.570 eV/particle 27.060 eV/particle 27.590 eV/particle 28.260 eV/particle 28.683,4 eV/particle 113.817,2 eV/particle 115.859 eV/particle

Irakite-entalpia
urtze-entalpia	15 kJ/mol
formazio entalpia estandarra
elektroi

elektroi geruza	2, 8, 18, 32, 18, 8, 1

balentzia-elektroi	1 ⓘ

electron configuration	[Rn] 7s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s¹

Oxidazio-egoera	1
Elektronegatibotasun	0.08731 0.7
Electrophilicity Index	0,7242688826969913 eV/particle
materiaren funtsezko egoera

materiaren egoera
materiaren egoera gaseoso
Boiling Point
Melting Point	294,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore	Black #ffffff #420066 #420066
appearance
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
Bero-dilatazio
molar heat capacity
Specific Heat Capacity
indize adiabatiko
electrical properties
type
Eroankortasun elektriko
Erresistibitate elektriko
Supereroankortasun
Magnetismo
type
suszeptibilitate magnetiko (Mass)
suszeptibilitate magnetiko (Molar)
suszeptibilitate magnetiko (Volume)
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal Structure	{ERROR}
lattice constant
Lattice Angles
materialen propietate mekaniko
Gogortasun
konprimagarritasun-modulu
Zizaila modulua
Youngen modulu
Poissonen modulu
Soinuaren lastertasun
classification
Category	Actinides, Alkali metals
CAS Group	IA
IUPAC Group	IA
Glawe Number	7
Mendeleev Number	6
Pettifor Number	7
Geochemical Class	U/Th decay series
Goldschmidt classification	synthetic

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Gas Basicity
polarizability	317,8 ± 2,4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
zenbaki kuantiko	2S1/2
talde espazial	()

Isotopes of Francium

Stable Isotopes	0
Unstable Isotopes	37
Natural Isotopes	0

¹⁹⁷Fr

masa-zenbaki	197
neutron number	110
Atomo-Masa Erlatibo	197,011008086 ± 0,000060584 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	2,3 ± 1,9 ms
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	2013
parity	-

decay mode	intensity
α (α emission)	100%

¹⁹⁸Fr

masa-zenbaki	198
neutron number	111
Atomo-Masa Erlatibo	198,010282081 ± 0,000033419 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	15 ± 3 ms
spin	3
nuclear quadrupole moment
aurkikuntza-data	2013
parity	+

decay mode	intensity
α (α emission)	100%

¹⁹⁹Fr

masa-zenbaki	199
neutron number	112
Atomo-Masa Erlatibo	199,007269384 ± 0,000014734 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	6,6 ± 2,2 ms
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1999
parity	+

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

²⁰⁰Fr

masa-zenbaki	200
neutron number	113
Atomo-Masa Erlatibo	200,006584666 ± 0,000032769 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	47,5 ± 2,8 ms
spin	3
nuclear quadrupole moment
aurkikuntza-data	1995
parity	+

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

²⁰¹Fr

masa-zenbaki	201
neutron number	114
Atomo-Masa Erlatibo	201,003852491 ± 0,000009747 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	62,8 ± 1,9 ms
spin	9/2
nuclear quadrupole moment
aurkikuntza-data	1980
parity	-

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

²⁰²Fr

masa-zenbaki	202
neutron number	115
Atomo-Masa Erlatibo	202,003329637 ± 0,000006476 Da
g-factor	1,3 ± 0,016666666666667
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	372 ± 12 ms
spin	3
nuclear quadrupole moment
aurkikuntza-data	1980
parity	+

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

²⁰³Fr

masa-zenbaki	203
neutron number	116
Atomo-Masa Erlatibo	203,000940867 ± 0,000006689 Da
g-factor	0,83111111111111 ± 0,0088888888888889
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	550 ± 10 ms
spin	9/2
nuclear quadrupole moment	−0,47 ± 0,02
aurkikuntza-data	1967
parity	-

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

²⁰⁴Fr

masa-zenbaki	204
neutron number	117
Atomo-Masa Erlatibo	204,000651972 ± 0,000026389 Da
g-factor	1,33 ± 0,01
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	1,75 ± 0,26 s
spin	3
nuclear quadrupole moment	−0,141 ± 0,009
aurkikuntza-data	1964
parity	+

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

²⁰⁵Fr

masa-zenbaki	205
neutron number	118
Atomo-Masa Erlatibo	204,998593854 ± 0,000008399 Da
g-factor	0,84444444444444 ± 0,0066666666666667
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	3,9 ± 0,07 s
spin	9/2
nuclear quadrupole moment	−0,305 ± 0,018
aurkikuntza-data	1964
parity	-

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

²⁰⁶Fr

masa-zenbaki	206
neutron number	119
Atomo-Masa Erlatibo	205,998661441 ± 0,000029856 Da
g-factor	1,3233333333333 ± 0,016666666666667
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo
spin	3
nuclear quadrupole moment	−0,354 ± 0,009
aurkikuntza-data	1964
parity	+

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

²⁰⁷Fr

masa-zenbaki	207
neutron number	120
Atomo-Masa Erlatibo	206,99694145 ± 0,000018847 Da
g-factor	0,86 ± 0,0088888888888889
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	14,8 ± 0,1 s
spin	9/2
nuclear quadrupole moment	−0,24 ± 0,02
aurkikuntza-data	1964
parity	-

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

²⁰⁸Fr

masa-zenbaki	208
neutron number	121
Atomo-Masa Erlatibo	207,997139082 ± 0,000012514 Da
g-factor	0,67285714285714 ± 0,0057142857142857
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	59,1 ± 0,3 s
spin	7
nuclear quadrupole moment	0,052 ± 0,011
aurkikuntza-data	1964
parity	+

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

²⁰⁹Fr

masa-zenbaki	209
neutron number	122
Atomo-Masa Erlatibo	208,995939701 ± 0,000012349 Da
g-factor	0,87333333333333 ± 0,011111111111111
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	50,5 ± 0,7 s
spin	9/2
nuclear quadrupole moment	−0,26 ± 0,02
aurkikuntza-data	1964
parity	-

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

²¹⁰Fr

masa-zenbaki	210
neutron number	123
Atomo-Masa Erlatibo	209,996410596 ± 0,000014407 Da
g-factor	0,73 ± 0,0083333333333333
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	3,18 ± 0,06 m
spin	6
nuclear quadrupole moment	0,21 ± 0,02
aurkikuntza-data	1964
parity	+

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

²¹¹Fr

masa-zenbaki	211
neutron number	124
Atomo-Masa Erlatibo	210,995555189 ± 0,000012872 Da
g-factor	0,88222222222222 ± 0,011111111111111
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	3,1 ± 0,02 m
spin	9/2
nuclear quadrupole moment	−0,21 ± 0,02
aurkikuntza-data	1964
parity	-

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

²¹²Fr

masa-zenbaki	212
neutron number	125
Atomo-Masa Erlatibo	211,99622542 ± 0,000009419 Da
g-factor	0,918 ± 0,01
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	20 ± 0,6 m
spin	5
nuclear quadrupole moment	−0,1 ± 0,002
aurkikuntza-data	1950
parity	+

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

²¹³Fr

masa-zenbaki	213
neutron number	126
Atomo-Masa Erlatibo	212,99618441 ± 0,000005053 Da
g-factor	0,88666666666667 ± 0,0022222222222222
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	34,14 ± 0,06 s
spin	9/2
nuclear quadrupole moment	−0,138 ± 0,003
aurkikuntza-data	1964
parity	-

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

²¹⁴Fr

masa-zenbaki	214
neutron number	127
Atomo-Masa Erlatibo	213,998971193 ± 0,000009145 Da
g-factor	0,241 ± 0,016
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	5,51 ± 0,13 ms
spin	1
nuclear quadrupole moment
aurkikuntza-data	1967
parity	-

decay mode	intensity
α (α emission)	100%

²¹⁵Fr

masa-zenbaki	215
neutron number	128
Atomo-Masa Erlatibo	215,000341534 ± 0,000007585 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	90 ± 4 ns
spin	9/2
nuclear quadrupole moment
aurkikuntza-data	1970
parity	-

decay mode	intensity
α (α emission)	100%

²¹⁶Fr

masa-zenbaki	216
neutron number	129
Atomo-Masa Erlatibo	216,003189523 ± 0,00000448 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	700 ± 20 ns
spin	1
nuclear quadrupole moment
aurkikuntza-data	1970
parity	-

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

²¹⁷Fr

masa-zenbaki	217
neutron number	130
Atomo-Masa Erlatibo	217,00463198 ± 0,000007011 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	22 ± 5 us
spin	9/2
nuclear quadrupole moment
aurkikuntza-data	1968
parity	-

decay mode	intensity
α (α emission)	100%

²¹⁸Fr

masa-zenbaki	218
neutron number	131
Atomo-Masa Erlatibo	218,00757862 ± 0,000004546 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	1,4 ± 0,5 ms
spin	1
nuclear quadrupole moment
aurkikuntza-data	1949
parity	-

decay mode	intensity
α (α emission)	100%

²¹⁹Fr

masa-zenbaki	219
neutron number	132
Atomo-Masa Erlatibo	219,009250664 ± 0,00000738 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	22,5 ± 1,7 ms
spin	9/2
nuclear quadrupole moment	−1,19 ± 0,02
aurkikuntza-data	1948
parity	-

decay mode	intensity
α (α emission)	100%

²²⁰Fr

masa-zenbaki	220
neutron number	133
Atomo-Masa Erlatibo	220,012326789 ± 0,000004324 Da
g-factor	−0,66 ± 0,01
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	27,4 ± 0,3 s
spin	1
nuclear quadrupole moment	0,487 ± 0,008
aurkikuntza-data	1948
parity	+

decay mode	intensity
α (α emission)	100%
β⁻ (β⁻ decay)	0.35%

²²¹Fr

masa-zenbaki	221
neutron number	134
Atomo-Masa Erlatibo	221,014253714 ± 0,000005245 Da
g-factor	0,628 ± 0,008
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	4,801 ± 0,005 m
spin	5/2
nuclear quadrupole moment	−1,02 ± 0,03
aurkikuntza-data	1947
parity	-

decay mode	intensity
α (α emission)	100%
β⁻ (β⁻ decay)	0.0048%
14C	8.8%

²²²Fr

masa-zenbaki	222
neutron number	135
Atomo-Masa Erlatibo	222,017582615 ± 0,000008 Da
g-factor	0,315 ± 0,005
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	14,2 ± 0,3 m
spin	2
nuclear quadrupole moment	0,51 ± 0,04
aurkikuntza-data	1975
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²²³Fr

masa-zenbaki	223
neutron number	136
Atomo-Masa Erlatibo	223,019734241 ± 0,000002073 Da
g-factor	0,77333333333333 ± 0,0066666666666667
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	22 ± 0,07 m
spin	3/2
nuclear quadrupole moment	1,18 ± 0,02
aurkikuntza-data	1939
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
α (α emission)	0.006%

²²⁴Fr

masa-zenbaki	224
neutron number	137
Atomo-Masa Erlatibo	224,023348096 ± 0,000012 Da
g-factor	0,4 ± 0,01
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	3,33 ± 0,1 m
spin	1
nuclear quadrupole moment	0,523 ± 0,009
aurkikuntza-data	1969
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²²⁵Fr

masa-zenbaki	225
neutron number	138
Atomo-Masa Erlatibo	225,025572466 ± 0,000012847 Da
g-factor	0,70666666666667 ± 0,0066666666666667
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	3,95 ± 0,14 m
spin	3/2
nuclear quadrupole moment	1,33 ± 0,02
aurkikuntza-data	1969
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²²⁶Fr

masa-zenbaki	226
neutron number	139
Atomo-Masa Erlatibo	226,029544512 ± 0,000006688 Da
g-factor	0,0712 ± 0,0014
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	48,5 ± 0,7 s
spin	1
nuclear quadrupole moment	−1,37 ± 0,03
aurkikuntza-data	1969
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²²⁷Fr

masa-zenbaki	227
neutron number	140
Atomo-Masa Erlatibo	227,031865413 ± 0,000006332 Da
g-factor	2,98 ± 0,04
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	2,47 ± 0,03 m
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1972
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²²⁸Fr

masa-zenbaki	228
neutron number	141
Atomo-Masa Erlatibo	228,035839433 ± 0,000007226 Da
g-factor	−0,38 ± 0,005
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	38 ± 1 s
spin	2
nuclear quadrupole moment	2,41 ± 0,06
aurkikuntza-data	1972
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

²²⁹Fr

masa-zenbaki	229
neutron number	142
Atomo-Masa Erlatibo	229,038291443 ± 0,000005368 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	50,2 ± 0,4 s
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1975
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²³⁰Fr

masa-zenbaki	230
neutron number	143
Atomo-Masa Erlatibo	230,042390787 ± 0,000007022 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	19,1 ± 0,5 s
spin	2
nuclear quadrupole moment
aurkikuntza-data	1987
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²³¹Fr

masa-zenbaki	231
neutron number	144
Atomo-Masa Erlatibo	231,045175353 ± 0,0000083 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	17,6 ± 0,6 s
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	1985
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²³²Fr

masa-zenbaki	232
neutron number	145
Atomo-Masa Erlatibo	232,049461219 ± 0,000015 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	5,5 ± 0,6 s
spin	5
nuclear quadrupole moment
aurkikuntza-data	1990
parity

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ SF (β⁻-delayed fission)

²³³Fr

masa-zenbaki	233
neutron number	146
Atomo-Masa Erlatibo	233,052517833 ± 0,000021 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	900 ± 100 ms
spin	1/2
nuclear quadrupole moment	0
aurkikuntza-data	2010
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

historia

aurkitzailea edo asmatzailea	Marguerite Derey
aurkikuntzaren lekua	France
aurkikuntza-data	1939
etimologia	Named for France, the nation of its discovery.
pronunciation	FRAN-si-em (ingelesa)

source

Abundance
Abundance in Earth's crust
natural abundance (ozeano)
natural abundance (gizakiaren gorputza)	0 %
natural abundance (Meteoroide)
natural abundance (Eguzkia)
Abundance in Universe	0 %

Nuclear Screening Constants

Frantzioa on ChemicalAid

Frantzioa (Fr)

Propietate Fisiko

Magnitude Fisiko

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Isotopes of Francium

197Fr

198Fr

199Fr

200Fr

201Fr

202Fr

203Fr

204Fr

205Fr

206Fr

207Fr

208Fr

209Fr

210Fr

211Fr

212Fr

213Fr

214Fr

215Fr

216Fr

217Fr

218Fr

219Fr

220Fr

221Fr

222Fr

223Fr

224Fr

225Fr

226Fr

227Fr

228Fr

229Fr

230Fr

231Fr

232Fr

233Fr

historia

source

Nuclear Screening Constants

¹⁹⁷Fr

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²⁰⁰Fr

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²⁰²Fr

²⁰³Fr

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