Neptunioa

Neptunioa (Np)

Zenbaki atomikoa 93 duen elementu kimiko artifizial eta erradioaktiboa, transuranidoen multzokoa. Metal zuri zilarkara da eta uranioaren antzeko propietateak ditu.
Atomic Number93
Atomic Weight237
masa-zenbaki219
Group
Period7
Blockf
protoi93 p+
neutroi126 n0
elektroi93 e-
Animated Bohrren eredu atomikoa of Np (Neptunioa)

Propietate Fisiko

Erradio Atomiko
175 pm
bolumen molar
Erradio Kobalente
171 pm
Metallic Radius
Erradio ioniko
110 pm
Crystal Radius
124 pm
Van der Waalsen erradio
239 pm
dentsitatea
20,2 g/cm³
Atomic Radii Of The Elements: Neptunioa020406080100120140160180200220240pmErradio AtomikoErradio KobalenteMetallic RadiusVan der Waalsen erradio

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
ionizazio energia
ionizazio energia of Np (Neptunioa)
Irakite-entalpia
336 kJ/mol
urtze-entalpia
9,6 kJ/mol
formazio entalpia estandarra
464,8 kJ/mol
elektroi
elektroi geruza2, 8, 18, 32, 22, 9, 2
Bohrren eredu atomikoa: Np (Neptunioa)
balentzia-elektroi2
Lewis egitura: Np (Neptunioa)
electron configuration[Rn] 5f4 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f4 6d1 7s2
Enhanced Bohrren eredu atomikoa of Np (Neptunioa)
Orbital Diagram of Np (Neptunioa)
Oxidazio-egoera2, 3, 4, 5, 6, 7
Elektronegatibotasun
1.3
Electrophilicity Index
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
Melting Point
917,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore
Silver
appearancesilvery metallic
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
Bero-dilatazio
molar heat capacity
Specific Heat Capacity
indize adiabatiko
electrical properties
typeConductor
Eroankortasun elektriko
0,83 MS/m
Erresistibitate elektriko
0,0000012 m Ω
Supereroankortasun
Magnetismo
type
suszeptibilitate magnetiko (Mass)
suszeptibilitate magnetiko (Molar)
suszeptibilitate magnetiko (Volume)
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal StructureSimple Orthorhombic (ORC)
lattice constant
4,72 Å
Lattice Anglesπ/2, π/2, π/2
materialen propietate mekaniko
Gogortasun
konprimagarritasun-modulu
Zizaila modulua
Youngen modulu
Poissonen modulu
Soinuaren lastertasun
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number37
Mendeleev Number22
Pettifor Number44
Geochemical Class
Goldschmidt classificationsynthetic

beste batzuk

Gas Basicity
polarizability
151 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
180
Neutron Mass Absorption
zenbaki kuantiko6L11/2
talde espazial62 (Pnma)

Isotopes of Neptunium

Stable Isotopes0
Unstable Isotopes27
Natural Isotopes0

219Np

masa-zenbaki219
neutron number126
atomo-masa erlatibo
219,031601865 ± 0,000098732 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
570 ± 450 us
spin9/2
nuclear quadrupole moment
aurkikuntza-data2015
parity-

decay modeintensity
α (α emission)100%

220Np

masa-zenbaki220
neutron number127
atomo-masa erlatibo
220,03271628 ± 0,000032977 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
29 ± 11 ns
spin1
nuclear quadrupole moment
aurkikuntza-data2019
parity-

decay modeintensity
α (α emission)100%

221Np

masa-zenbaki221
neutron number128
atomo-masa erlatibo
221,03211 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin9/2
nuclear quadrupole moment
aurkikuntza-data
parity-

decay modeintensity
α (α emission)

222Np

masa-zenbaki222
neutron number129
atomo-masa erlatibo
222,033574706 ± 0,000040849 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
480 ± 190 ns
spin1
nuclear quadrupole moment
aurkikuntza-data2020
parity-

decay modeintensity
α (α emission)100%

223Np

masa-zenbaki223
neutron number130
atomo-masa erlatibo
223,03291334 ± 0,000088956 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,5 ± 0,8 us
spin9/2
nuclear quadrupole moment
aurkikuntza-data2017
parity-

decay modeintensity
α (α emission)100%

224Np

masa-zenbaki224
neutron number131
atomo-masa erlatibo
224,03438803 ± 0,000031052 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
48 ± 19 us
spin2
nuclear quadrupole moment
aurkikuntza-data2018
parity-

decay modeintensity
α (α emission)100%

225Np

masa-zenbaki225
neutron number132
atomo-masa erlatibo
225,033943422 ± 0,000098355 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
6,5 ± 3,5 ms
spin9/2
nuclear quadrupole moment
aurkikuntza-data1994
parity-

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

226Np

masa-zenbaki226
neutron number133
atomo-masa erlatibo
226,035230364 ± 0,000109568 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
35 ± 10 ms
spin
nuclear quadrupole moment
aurkikuntza-data1990
parity

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

227Np

masa-zenbaki227
neutron number134
atomo-masa erlatibo
227,034975012 ± 0,000082651 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
510 ± 60 ms
spin5/2
nuclear quadrupole moment
aurkikuntza-data1990
parity+

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

228Np

masa-zenbaki228
neutron number135
atomo-masa erlatibo
228,036313 ± 0,000108 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
61,4 ± 1,4 s
spin4
nuclear quadrupole moment
aurkikuntza-data1994
parity+

decay modeintensity
ϵ (electron capture)59%
α (α emission)41%
β+ SF (β+-delayed fission)0.012%

229Np

masa-zenbaki229
neutron number136
atomo-masa erlatibo
229,036287269 ± 0,000108618 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4 ± 0,18 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1968
parity+

decay modeintensity
α (α emission)68%
β+ (β+ decay; β+ = ϵ + e+)

230Np

masa-zenbaki230
neutron number137
atomo-masa erlatibo
230,03782806 ± 0,000059051 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,6 ± 0,3 m
spin4
nuclear quadrupole moment
aurkikuntza-data1968
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)97%
α (α emission)3%

231Np

masa-zenbaki231
neutron number138
atomo-masa erlatibo
231,038243598 ± 0,000054916 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
48,8 ± 0,2 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1950
parity+

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

232Np

masa-zenbaki232
neutron number139
atomo-masa erlatibo
232,040107 ± 0,000107 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
14,7 ± 0,3 m
spin5
nuclear quadrupole moment
aurkikuntza-data1950
parity-

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

233Np

masa-zenbaki233
neutron number140
atomo-masa erlatibo
233,040739421 ± 0,000054729 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
36,2 ± 0,1 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.0007%

234Np

masa-zenbaki234
neutron number141
atomo-masa erlatibo
234,042893245 ± 0,000009014 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,4 ± 0,1 d
spin0
nuclear quadrupole moment
0
aurkikuntza-data1949
parity+

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

235Np

masa-zenbaki235
neutron number142
atomo-masa erlatibo
235,044061518 ± 0,00000149 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
396,1 ± 1,2 d
spin5/2
nuclear quadrupole moment
aurkikuntza-data1949
parity+

decay modeintensity
ϵ (electron capture)99.9974%
α (α emission)0.0026%

236Np

masa-zenbaki236
neutron number143
atomo-masa erlatibo
236,046568296 ± 0,000054129 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
153 ± 5 ky
spin6
nuclear quadrupole moment
aurkikuntza-data1949
parity-

decay modeintensity
ϵ (electron capture)86.3%
β (β decay)13.5%
α (α emission)0.16%

237Np

masa-zenbaki237
neutron number144
atomo-masa erlatibo
237,04817164 ± 0,000001201 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,144 ± 0,007 My
spin5/2
nuclear quadrupole moment
3,886 ± 0,006
aurkikuntza-data1948
parity+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)2%
30Mg4%

238Np

masa-zenbaki238
neutron number145
atomo-masa erlatibo
238,050944603 ± 0,00000122 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,099 ± 0,002 d
spin2
nuclear quadrupole moment
aurkikuntza-data1949
parity+

decay modeintensity
β (β decay)100%

239Np

masa-zenbaki239
neutron number146
atomo-masa erlatibo
239,052937538 ± 0,000001406 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,356 ± 0,003 d
spin5/2
nuclear quadrupole moment
aurkikuntza-data1940
parity+

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

240Np

masa-zenbaki240
neutron number147
atomo-masa erlatibo
240,056163778 ± 0,000018284 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
61,9 ± 0,2 m
spin5
nuclear quadrupole moment
aurkikuntza-data1953
parity+

decay modeintensity
β (β decay)100%

241Np

masa-zenbaki241
neutron number148
atomo-masa erlatibo
241,058309671 ± 0,00010736 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
13,9 ± 0,2 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1959
parity+

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

242Np

masa-zenbaki242
neutron number149
atomo-masa erlatibo
242,061639548 ± 0,000214712 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,2 ± 0,2 m
spin1
nuclear quadrupole moment
aurkikuntza-data1979
parity+

decay modeintensity
β (β decay)100%

243Np

masa-zenbaki243
neutron number150
atomo-masa erlatibo
243,064204 ± 0,000034 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,85 ± 0,15 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1979
parity+

decay modeintensity
β (β decay)100%

244Np

masa-zenbaki244
neutron number151
atomo-masa erlatibo
244,067891 ± 0,000107 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,29 ± 0,16 m
spin7
nuclear quadrupole moment
aurkikuntza-data1987
parity-

decay modeintensity
β (β decay)100%

245Np

masa-zenbaki245
neutron number152
atomo-masa erlatibo
245,070693 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin5/2
nuclear quadrupole moment
aurkikuntza-data
parity+

decay modeintensity
β (β decay)
Neptunium2

historia

aurkitzailea edo asmatzaileaE.M. McMillan, P.H. Abelson
aurkikuntzaren lekuaUnited States
aurkikuntza-data1940
etimologiaNamed for the planet Neptune.
pronunciationnep-TOO-ni-em (ingelesa)

source

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

Nuclear Screening Constants