Lawrencij[um]

Lawrencij[um] (Lr)

hemijski element sa simbolom Lr i atomskim brojem 103
Atomic Number103
Atomic Weight262
Maseni broj251
Group
Period7
Blockf
Proton103 p+
Neutron148 n0
Elektron103 e-
Animated Bohrov model atoma of Lr (Lawrencij[um])

Physical Property

Atomski Radijus
Molarni volumen
covalent radius
161 pm
Metallic Radius
Ionski radijus
107,4 pm
Crystal Radius
121,4 pm
Van der Waalsov radijus
246 pm
gustoća
15,6 g/cm³

Chemical Property

energija
proton affinity
electron affinity
ionization energy
ionization energy of Lr (Lawrencij[um])
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
Elektron
electron shell2, 8, 18, 32, 32, 8, 3
Bohrov model atoma: Lr (Lawrencij[um])
Valentni elektron2
Lewis structure: Lr (Lawrencij[um])
electron configuration[Rn] 5f14 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f14 6d1 7s2
Enhanced Bohrov model atoma of Lr (Lawrencij[um])
Orbital Diagram of Lr (Lawrencij[um])
oksidacijsko stanje3
Elektronegativnost
Electrophilicity Index
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
1.900,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Colorless
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 ()
lattice constant
Lattice Angles
mechanical property
Tvrdoća
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Brzina zvuka
klasifikacija
CategoryActinides, Transition metals
CAS Group
IUPAC Group
Glawe Number47
Mendeleev Number42
Pettifor Number34
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
320 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
Kvantni brojevi2P1/2
space group ()

Isotopes of Lawrencium

Stable Isotopes0
Unstable Isotopes16
Natural Isotopes0

251Lr

Maseni broj251
broj neutrona148
relative atomic mass
251,094289 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

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

252Lr

Maseni broj252
broj neutrona149
relative atomic mass
252,095048 ± 0,000198 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
369 ± 75 ms
spin7
nuclear quadrupole moment
datum otkrića2001
parity-

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

253Lr

Maseni broj253
broj neutrona150
relative atomic mass
253,09503385 ± 0,000176634 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
632 ± 46 ms
spin7/2
nuclear quadrupole moment
datum otkrića1985
parity-

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

254Lr

Maseni broj254
broj neutrona151
relative atomic mass
254,096238813 ± 0,000098026 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12 ± 0,9 s
spin4
nuclear quadrupole moment
datum otkrića1981
parity+

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

255Lr

Maseni broj255
broj neutrona152
relative atomic mass
255,096562399 ± 0,000019 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
31,1 ± 1,1 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1971
parity-

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

256Lr

Maseni broj256
broj neutrona153
relative atomic mass
256,098494024 ± 0,000089 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
27,9 ± 1 s
spin0
nuclear quadrupole moment
0
datum otkrića1965
parity-

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

257Lr

Maseni broj257
broj neutrona154
relative atomic mass
257,09948 ± 0,000047 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6 ± 0,4 s
spin7/2
nuclear quadrupole moment
datum otkrića1971
parity-

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

258Lr

Maseni broj258
broj neutrona155
relative atomic mass
258,101753 ± 0,000109 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,92 ± 0,33 s
spin
nuclear quadrupole moment
datum otkrića1971
parity

decay modeintensity
α (α emission)97.4%
β+ (β+ decay; β+ = ϵ + e+)2.6%

259Lr

Maseni broj259
broj neutrona156
relative atomic mass
259,1029 ± 0,000076 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,2 ± 0,3 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1971
parity-

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

260Lr

Maseni broj260
broj neutrona157
relative atomic mass
260,105504 ± 0,000134 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3 ± 0,5 m
spin
nuclear quadrupole moment
datum otkrića1971
parity

decay modeintensity
α (α emission)80%
β+ (β+ decay; β+ = ϵ + e+)20%

261Lr

Maseni broj261
broj neutrona158
relative atomic mass
261,106879 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
39 ± 12 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1987
parity-

decay modeintensity
SF (spontaneous fission)100%
α (α emission)

262Lr

Maseni broj262
broj neutrona159
relative atomic mass
262,109615 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića1987
parity

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

263Lr

Maseni broj263
broj neutrona160
relative atomic mass
263,111293 ± 0,00024 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića
parity-

decay modeintensity
α (α emission)

264Lr

Maseni broj264
broj neutrona161
relative atomic mass
264,114198 ± 0,000468 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

decay modeintensity
α (α emission)
SF (spontaneous fission)

265Lr

Maseni broj265
broj neutrona162
relative atomic mass
265,116193 ± 0,000587 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića
parity-

decay modeintensity
α (α emission)
SF (spontaneous fission)

266Lr

Maseni broj266
broj neutrona163
relative atomic mass
266,119874 ± 0,000579 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22 ± 14 h
spin
nuclear quadrupole moment
datum otkrića2014
parity

decay modeintensity
SF (spontaneous fission)100%
Electron shell 103 Lawrencium

historija

otkrivač ili izumiteljA.Ghiorso, T.Sikkeland, A.E.Larsh, R.M.Latimer
mjesto otkrićaUnited States
datum otkrića1961
EtimologijaNamed in honor of Ernest O. Lawrence, inventor of the cyclotron.
pronunciationlor-ENS-i-em (engleski)

izvor

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

Nuclear Screening Constants