Lawrensium (Lr)

chemical element with the atomic number of 103

Atomic Number	103
Atomic Weight	262
Nombor jisim	251

Group
Period	7
Block	f

proton	103 p⁺
neutron	148 n⁰
Elektron	103 e^-

Sifat Fizikal

Jejari Atom
molar volume
Jejari kovalen	161 pm 141 pm
Metallic Radius
ionic radius	107.4 pm
Crystal Radius	121.4 pm
Jejari van der Waals	246 pm 323.6 pm
ketumpatan	15.6 g/cm³

Sifat Kimia

{ERROR}

tenaga

proton affinity
Pertalian elektron
ionization energy	4.9 eV/particle 14.3 eV/particle 21.4 eV/particle 43.6 eV/particle 56 eV/particle 80 eV/particle 96 eV/particle 121 eV/particle 143 eV/particle 165 eV/particle 197 eV/particle 216 eV/particle 244 eV/particle 269 eV/particle 290 eV/particle 320 eV/particle 344 eV/particle 374 eV/particle 403 eV/particle 431 eV/particle 460 eV/particle 487 eV/particle 510 eV/particle 540 eV/particle 560 eV/particle 745 eV/particle 779 eV/particle 814 eV/particle 852 eV/particle 888 eV/particle 922 eV/particle 985 eV/particle 1,020 eV/particle 1,061 eV/particle 1,098 eV/particle 1,280 eV/particle 1,320 eV/particle 1,360 eV/particle 1,410 eV/particle 1,570 eV/particle 1,620 eV/particle 1,760 eV/particle 1,810 eV/particle 2,010 eV/particle 2,100 eV/particle 2,190 eV/particle 2,290 eV/particle 2,380 eV/particle 2,470 eV/particle 2,570 eV/particle 2,670 eV/particle 2,780 eV/particle 2,860 eV/particle 2,960 eV/particle 3,060 eV/particle 3,150 eV/particle 3,250 eV/particle 3,741 eV/particle 3,821 eV/particle 3,906 eV/particle 3,996 eV/particle 4,082 eV/particle 4,165 eV/particle 4,360 eV/particle 4,448 eV/particle 4,540 eV/particle 4,630 eV/particle 4,990 eV/particle 5,070 eV/particle 5,160 eV/particle 5,250 eV/particle 5,920 eV/particle 6,030 eV/particle 6,290 eV/particle 6,390 eV/particle 9,920 eV/particle 10,110 eV/particle 10,310 eV/particle 10,520 eV/particle 10,720 eV/particle 10,920 eV/particle 11,480 eV/particle 11,680 eV/particle 11,910 eV/particle 12,120 eV/particle 12,710 eV/particle 12,890 eV/particle 13,090 eV/particle 13,300 eV/particle 15,300 eV/particle 15,600 eV/particle 16,000 eV/particle 16,200 eV/particle 32,400 eV/particle 32,900 eV/particle 33,400 eV/particle 33,900 eV/particle 41,600 eV/particle 42,300 eV/particle 43,200 eV/particle 43,759 eV/particle 172,930 eV/particle

Entalpi pengewapan
entalpi pelakuran
standard enthalpy of formation
Elektron

Petala elektron	2, 8, 18, 32, 32, 8, 3

Elektron valens	2 ⓘ

tatarajah elektron	[Rn] 5f¹⁴ 6d¹ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹⁴ 6d¹ 7s²

Keadaan pengoksidaan	3
Keelektronegatifan	0.24844
Electrophilicity Index
keadaan jirim asas

fasa jirim
gaseous state of matter
Boiling Point
Melting Point	1,900.15 K
critical pressure
critical temperature
triple point
rupa
warna	Black #ffffff #c70066 #c70066
rupa
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Kekonduksian elektrik
Kerintangan dan kekonduksian elektrik
Kesuperkonduksian
kemagnetan
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal Structure	{ERROR}
lattice constant
Lattice Angles
mechanical property
hardness
Modulus pukal
shear modulus
Young's modulus
Nisbah Poisson
Kelajuan bunyi
pengelasan
Category	Actinides, Transition metals
CAS Group
IUPAC Group
Glawe Number	47
Mendeleev Number	42
Pettifor Number	34
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	320 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
Nombor kuantum	2P1/2
space group	()

Isotopes of Lawrencium

Stable Isotopes	0
Unstable Isotopes	16
Natural Isotopes	0

²⁵¹Lr

Nombor jisim	251
nombor neutron	148
Jisim Atom Relatif	251.094289 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan
parity

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
α (α emission)

²⁵²Lr

Nombor jisim	252
nombor neutron	149
Jisim Atom Relatif	252.095048 ± 0.000198 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	369 ± 75 ms
Spin	7
nuclear quadrupole moment
tarikh penemuan	2001
parity	-

decay mode	Keamatan (fizik)
α (α emission)	98%
SF (spontaneous fission)	2%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²⁵³Lr

Nombor jisim	253
nombor neutron	150
Jisim Atom Relatif	253.09503385 ± 0.000176634 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	632 ± 46 ms
Spin	7/2
nuclear quadrupole moment
tarikh penemuan	1985
parity	-

decay mode	Keamatan (fizik)
α (α emission)	90%
SF (spontaneous fission)	1%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²⁵⁴Lr

Nombor jisim	254
nombor neutron	151
Jisim Atom Relatif	254.096238813 ± 0.000098026 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	12 ± 0.9 s
Spin	4
nuclear quadrupole moment
tarikh penemuan	1981
parity	+

decay mode	Keamatan (fizik)
α (α emission)	71.7%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	28.3%
SF (spontaneous fission)	0.1%

²⁵⁵Lr

Nombor jisim	255
nombor neutron	152
Jisim Atom Relatif	255.096562399 ± 0.000019 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	31.1 ± 1.1 s
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1971
parity	-

decay mode	Keamatan (fizik)
α (α emission)	99.7%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	0.3%
SF (spontaneous fission)

²⁵⁶Lr

Nombor jisim	256
nombor neutron	153
Jisim Atom Relatif	256.098494024 ± 0.000089 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	27.9 ± 1 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1965
parity	-

decay mode	Keamatan (fizik)
α (α emission)	85%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	15%
SF (spontaneous fission)	0.03%

²⁵⁷Lr

Nombor jisim	257
nombor neutron	154
Jisim Atom Relatif	257.09948 ± 0.000047 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	6 ± 0.4 s
Spin	7/2
nuclear quadrupole moment
tarikh penemuan	1971
parity	-

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

²⁵⁸Lr

Nombor jisim	258
nombor neutron	155
Jisim Atom Relatif	258.101753 ± 0.000109 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	3.92 ± 0.33 s
Spin
nuclear quadrupole moment
tarikh penemuan	1971
parity

decay mode	Keamatan (fizik)
α (α emission)	97.4%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	2.6%

²⁵⁹Lr

Nombor jisim	259
nombor neutron	156
Jisim Atom Relatif	259.1029 ± 0.000076 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	6.2 ± 0.3 s
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1971
parity	-

decay mode	Keamatan (fizik)
α (α emission)	78%
SF (spontaneous fission)	22%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²⁶⁰Lr

Nombor jisim	260
nombor neutron	157
Jisim Atom Relatif	260.105504 ± 0.000134 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	3 ± 0.5 m
Spin
nuclear quadrupole moment
tarikh penemuan	1971
parity

decay mode	Keamatan (fizik)
α (α emission)	80%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	20%

²⁶¹Lr

Nombor jisim	261
nombor neutron	158
Jisim Atom Relatif	261.106879 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	39 ± 12 m
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1987
parity	-

decay mode	Keamatan (fizik)
SF (spontaneous fission)	100%
α (α emission)

²⁶²Lr

Nombor jisim	262
nombor neutron	159
Jisim Atom Relatif	262.109615 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan	1987
parity

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
SF (spontaneous fission)	10%
α (α emission)

²⁶³Lr

Nombor jisim	263
nombor neutron	160
Jisim Atom Relatif	263.111293 ± 0.00024 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan
parity	-

decay mode	Keamatan (fizik)
α (α emission)

²⁶⁴Lr

Nombor jisim	264
nombor neutron	161
Jisim Atom Relatif	264.114198 ± 0.000468 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan
parity

decay mode	Keamatan (fizik)
α (α emission)
SF (spontaneous fission)

²⁶⁵Lr

Nombor jisim	265
nombor neutron	162
Jisim Atom Relatif	265.116193 ± 0.000587 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan
parity	-

decay mode	Keamatan (fizik)
α (α emission)
SF (spontaneous fission)

²⁶⁶Lr

Nombor jisim	266
nombor neutron	163
Jisim Atom Relatif	266.119874 ± 0.000579 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	22 ± 14 h
Spin
nuclear quadrupole moment
tarikh penemuan	2014
parity

decay mode	Keamatan (fizik)
SF (spontaneous fission)	100%

sejarah

penemu atau pereka	A.Ghiorso, T.Sikkeland, A.E.Larsh, R.M.Latimer
tempat penemuan	United States
tarikh penemuan	1961
Etimologi	Named in honor of Ernest O. Lawrence, inventor of the cyclotron.
sebutan	lor-ENS-i-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
natural abundance (Tubuh manusia)	0 %
natural abundance (Meteoroid)	0 %
natural abundance (Matahari)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Lawrensium on ChemicalAid

Lawrensium (Lr)

Sifat Fizikal

Sifat Kimia

other

Isotopes of Lawrencium

251Lr

252Lr

253Lr

254Lr

255Lr

256Lr

257Lr

258Lr

259Lr

260Lr

261Lr

262Lr

263Lr

264Lr

265Lr

266Lr

sejarah

sumber

Nuclear Screening Constants

²⁵¹Lr

²⁵²Lr

²⁵³Lr

²⁵⁴Lr

²⁵⁵Lr

²⁵⁶Lr

²⁵⁷Lr

²⁵⁸Lr

²⁵⁹Lr

²⁶⁰Lr

²⁶¹Lr

²⁶²Lr

²⁶³Lr

²⁶⁴Lr

²⁶⁵Lr

²⁶⁶Lr