Ruterfordio (Rf)

chemical element with symbol Rf and atomic number 104

Atomic Number	104
Atomic Weight	267
Numero masico	253

Group	4
Period	7
Block	d

Protón	104 p⁺
Neutrón	149 n⁰
Electrón	104 e^-

Animated Modelo atomico de Bohr of Rf (Ruterfordio)

Physical Property

Radio Atomico
molar volume
Radio covalent	157 pm 140 pm 131 pm
Metallic Radius
Radio ionico
Crystal Radius
Radio de van der Waals
density	23.3 g/cm³

Chemical Property

enerchía

proton affinity
Afinidat electronica
ionization energy	6.01 eV/particle 14.7 eV/particle 23.9 eV/particle 31.7 eV/particle 64 eV/particle 77 eV/particle 102 eV/particle 119 eV/particle 146.1 eV/particle 169 eV/particle 193 eV/particle 225 eV/particle 244 eV/particle 275 eV/particle 791 eV/particle 825 eV/particle 860 eV/particle 899 eV/particle 936 eV/particle 972 eV/particle 1036 eV/particle 1073 eV/particle 1114 eV/particle 1151 eV/particle 3857 eV/particle 3938 eV/particle 4025 eV/particle 4116 eV/particle 4203 eV/particle 4287 eV/particle 4489 eV/particle 4580 eV/particle 4670 eV/particle 4760 eV/particle 5120 eV/particle 5210 eV/particle 5300 eV/particle 5390 eV/particle 6100 eV/particle 6200 eV/particle 6470 eV/particle 6570 eV/particle 10170 eV/particle 10360 eV/particle 10560 eV/particle 10780 eV/particle 10980 eV/particle 11180 eV/particle 11750 eV/particle 11960 eV/particle 12200 eV/particle 12410 eV/particle 13010 eV/particle 13190 eV/particle 13400 eV/particle 13600 eV/particle 15800 eV/particle 16000 eV/particle 16400 eV/particle 16700 eV/particle 33100 eV/particle 33600 eV/particle 34100 eV/particle 34600 eV/particle 42700 eV/particle 43400 eV/particle 44300 eV/particle 177148 eV/particle

Entalpía de vaporización
entalpía de fusión
standard enthalpy of formation
Electrón

electron shell	2, 8, 18, 32, 32, 10, 2

valence electron	2 ⓘ

electron configuration	[Rn] 5f¹⁴ 6d² 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹⁴ 6d² 7s²

Numero d'oxidación	4
Electronegatividat
Electrophilicity Index
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
Punto triple
appearance
Color	Colorless #cc0059
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure	{ERROR}
lattice constant
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
Category	Transition metals, Transition metals
CAS Group	IVA
IUPAC Group	IVB
Glawe Number
Mendeleev Number	46
Pettifor Number
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	112 ± 10 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
quantum number	3F2
space group	()

Isotopes of Rutherfordium

Stable Isotopes	0
Unstable Isotopes	16
Natural Isotopes	0

²⁵³Rf

Numero masico	253
neutron number	149
Relative Atomic Mass	253.100528 ± 0.00044 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	13 ± 5 ms
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1997
parity

decay mode	intensity
SF (spontaneous fission)	100%
α (α emission)

²⁵⁴Rf

Numero masico	254
neutron number	150
Relative Atomic Mass	254.100055 ± 0.000304 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	22.9 ± 1 us
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1997
parity	+

decay mode	intensity
SF (spontaneous fission)	100%
α (α emission)	1.5%

²⁵⁵Rf

Numero masico	255
neutron number	151
Relative Atomic Mass	255.101267 ± 0.000194 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	1.63 ± 0.05 s
spin	9/2
nuclear quadrupole moment
time of discovery or invention	1975
parity	-

decay mode	intensity
α (α emission)	52.8%
SF (spontaneous fission)	47.2%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	6%

²⁵⁶Rf

Numero masico	256
neutron number	152
Relative Atomic Mass	256.101151464 ± 0.00001916 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	6.6 ± 0.05 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1975
parity	+

decay mode	intensity
SF (spontaneous fission)	99.69%
α (α emission)	0.31%

²⁵⁷Rf

Numero masico	257
neutron number	153
Relative Atomic Mass	257.102916796 ± 0.000011612 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	5 ± 0.2 s
spin	1/2
nuclear quadrupole moment	0
time of discovery or invention	1969
parity	+

decay mode	intensity
α (α emission)	89.3%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	9.4%
SF (spontaneous fission)	1.3%

²⁵⁸Rf

Numero masico	258
neutron number	154
Relative Atomic Mass	258.103429895 ± 0.000017288 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	12.5 ± 0.5 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1969
parity	+

decay mode	intensity
SF (spontaneous fission)	95.1%
α (α emission)	4.9%

²⁵⁹Rf

Numero masico	259
neutron number	155
Relative Atomic Mass	259.105601 ± 0.000078 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	2.63 ± 0.26 s
spin	3/2
nuclear quadrupole moment
time of discovery or invention	1969
parity	+

decay mode	intensity
α (α emission)	85%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	15%
SF (spontaneous fission)	3%

²⁶⁰Rf

Numero masico	260
neutron number	156
Relative Atomic Mass	260.10644 ± 0.000215 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	21 ± 1 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1985
parity	+

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

²⁶¹Rf

Numero masico	261
neutron number	157
Relative Atomic Mass	261.108769591 ± 0.000070492 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	2.1 ± 0.2 s
spin	3/2
nuclear quadrupole moment
time of discovery or invention	1970
parity	+

decay mode	intensity
SF (spontaneous fission)	82%
α (α emission)	18%

²⁶²Rf

Numero masico	262
neutron number	158
Relative Atomic Mass	262.109923 ± 0.00024 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	250 ± 100 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1985
parity	+

decay mode	intensity
SF (spontaneous fission)	100%

²⁶³Rf

Numero masico	263
neutron number	159
Relative Atomic Mass	263.112461 ± 0.000164 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	11 ± 3 m
spin
nuclear quadrupole moment
time of discovery or invention	2003
parity

decay mode	intensity
SF (spontaneous fission)	100%
α (α emission)

²⁶⁴Rf

Numero masico	264
neutron number	160
Relative Atomic Mass	264.113876 ± 0.000387 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración
spin	0
nuclear quadrupole moment	0
time of discovery or invention
parity	+

decay mode	intensity
α (α emission)

²⁶⁵Rf

Numero masico	265
neutron number	161
Relative Atomic Mass	265.116683 ± 0.000387 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	1.6 ± 0.6 m
spin	9/2
nuclear quadrupole moment
time of discovery or invention	2010
parity	+

decay mode	intensity
SF (spontaneous fission)	100%
α (α emission)

²⁶⁶Rf

Numero masico	266
neutron number	162
Relative Atomic Mass	266.118236 ± 0.000443 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración
spin	0
nuclear quadrupole moment	0
time of discovery or invention
parity	+

decay mode	intensity
α (α emission)
SF (spontaneous fission)

²⁶⁷Rf

Numero masico	267
neutron number	163
Relative Atomic Mass	267.121787 ± 0.000617 Da
g-factor
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración	2.5 ± 1.5 h
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
SF (spontaneous fission)	100%

²⁶⁸Rf

Numero masico	268
neutron number	164
Relative Atomic Mass	268.123968 ± 0.000711 Da
g-factor	0
natural abundance
Radioactividat	☢️ radioactive element
Periodo de semidesintegración
spin	0
nuclear quadrupole moment	0
time of discovery or invention
parity	+

decay mode	intensity
α (α emission)
SF (spontaneous fission)

historia

discoverer or inventor	A. Ghiorso, et al
location of discovery	United States
time of discovery or invention	1969
Etimolochía	Named in honor of Ernest Rutherford
pronunciation	ruth-er-FORD-i-em (English)

source

Abundance
Abundance in Earth's crust
natural abundance (ocián)
natural abundance (human body)	0 %
natural abundance (meteoroid)	0 %
natural abundance (Sol)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Ruterfordio on ChemicalAid

Ruterfordio (Rf)

Physical Property

Chemical Property

other

Isotopes of Rutherfordium

253Rf

254Rf

255Rf

256Rf

257Rf

258Rf

259Rf

260Rf

261Rf

262Rf

263Rf

264Rf

265Rf

266Rf

267Rf

268Rf

historia

source

Nuclear Screening Constants

²⁵³Rf

²⁵⁴Rf

²⁵⁵Rf

²⁵⁶Rf

²⁵⁷Rf

²⁵⁸Rf

²⁵⁹Rf

²⁶⁰Rf

²⁶¹Rf

²⁶²Rf

²⁶³Rf

²⁶⁴Rf

²⁶⁵Rf

²⁶⁶Rf

²⁶⁷Rf

²⁶⁸Rf