Neptun, ²Neptuniumi

Neptun, ²Neptuniumi (Np)

chemical element with the atomic number of 93 and symbol Np
Atomic Number93
Atomic Weight237
Numri i masës219
Group
Period7
Blockf
protoni93 p+
neutroni126 n0
elektroni93 e-
Animated Bohr model of Np (Neptun, ²Neptuniumi)

Tipar Fizik

Atomic Radius
175 pm
molar volume
covalent radius
171 pm
Metallic Radius
ionic radius
110 pm
Crystal Radius
124 pm
Van der Waals radius
239 pm
density
20,2 g/cm³
Atomic Radii Of The Elements: Neptun, ²Neptuniumi0153045607590105120135150165180195210225240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
electron affinity
ionization energy
ionization energy of Np (Neptun, ²Neptuniumi)
enthalpy of vaporization
336 kJ/mol
enthalpy of fusion
9,6 kJ/mol
standard enthalpy of formation
464,8 kJ/mol
elektroni
electron shell2, 8, 18, 32, 22, 9, 2
Bohr model: Np (Neptun, ²Neptuniumi)
valence electron2
Lewis structure: Np (Neptun, ²Neptuniumi)
konfigurimi i elektronit[Rn] 5f4 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f4 6d1 7s2
Enhanced Bohr model of Np (Neptun, ²Neptuniumi)
Orbital Diagram of Np (Neptun, ²Neptuniumi)
oxidation number2, 3, 4, 5, 6, 7
Elektronegativiteti
1.3
Electrophilicity Index
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
Melting Point
917,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Silver
appearancesilvery metallic
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
0,83 MS/m
electrical resistivity
0,0000012 m Ω
Superpërcjellshmëria
Magnetizimi
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
strukturë
Crystal StructureSimple Orthorhombic (ORC)
lattice constant
4,72 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Shpejtësia e zërit
klasifikim
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number37
Mendeleev Number22
Pettifor Number44
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
151 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
180
Neutron Mass Absorption
numër kuantik6L11/2
space group62 (Pnma)

Isotopes of Neptunium

Stable Isotopes0
Unstable Isotopes27
Natural Isotopes0

219Np

Numri i masës219
numri i neutroneve126
relative atomic mass
219,031601865 ± 0,000098732 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
570 ± 450 us
Spini9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2015
parity-

decay modeintensitet
α (α emission)100%

220Np

Numri i masës220
numri i neutroneve127
relative atomic mass
220,03271628 ± 0,000032977 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
29 ± 11 ns
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes2019
parity-

decay modeintensitet
α (α emission)100%

221Np

Numri i masës221
numri i neutroneve128
relative atomic mass
221,03211 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity-

decay modeintensitet
α (α emission)

222Np

Numri i masës222
numri i neutroneve129
relative atomic mass
222,033574706 ± 0,000040849 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
480 ± 190 ns
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes2020
parity-

decay modeintensitet
α (α emission)100%

223Np

Numri i masës223
numri i neutroneve130
relative atomic mass
223,03291334 ± 0,000088956 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,5 ± 0,8 us
Spini9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity-

decay modeintensitet
α (α emission)100%

224Np

Numri i masës224
numri i neutroneve131
relative atomic mass
224,03438803 ± 0,000031052 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
48 ± 19 us
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2018
parity-

decay modeintensitet
α (α emission)100%

225Np

Numri i masës225
numri i neutroneve132
relative atomic mass
225,033943422 ± 0,000098355 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
6,5 ± 3,5 ms
Spini9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1994
parity-

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

226Np

Numri i masës226
numri i neutroneve133
relative atomic mass
226,035230364 ± 0,000109568 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
35 ± 10 ms
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes1990
parity

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

227Np

Numri i masës227
numri i neutroneve134
relative atomic mass
227,034975012 ± 0,000082651 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
510 ± 60 ms
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1990
parity+

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

228Np

Numri i masës228
numri i neutroneve135
relative atomic mass
228,036313 ± 0,000108 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
61,4 ± 1,4 s
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes1994
parity+

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

229Np

Numri i masës229
numri i neutroneve136
relative atomic mass
229,036287269 ± 0,000108618 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4 ± 0,18 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1968
parity+

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

230Np

Numri i masës230
numri i neutroneve137
relative atomic mass
230,03782806 ± 0,000059051 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,6 ± 0,3 m
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes1968
parity+

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

231Np

Numri i masës231
numri i neutroneve138
relative atomic mass
231,038243598 ± 0,000054916 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
48,8 ± 0,2 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity+

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

232Np

Numri i masës232
numri i neutroneve139
relative atomic mass
232,040107 ± 0,000107 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
14,7 ± 0,3 m
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity-

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

233Np

Numri i masës233
numri i neutroneve140
relative atomic mass
233,040739421 ± 0,000054729 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
36,2 ± 0,1 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity+

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

234Np

Numri i masës234
numri i neutroneve141
relative atomic mass
234,042893245 ± 0,000009014 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,4 ± 0,1 d
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1949
parity+

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

235Np

Numri i masës235
numri i neutroneve142
relative atomic mass
235,044061518 ± 0,00000149 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
396,1 ± 1,2 d
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1949
parity+

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

236Np

Numri i masës236
numri i neutroneve143
relative atomic mass
236,046568296 ± 0,000054129 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
153 ± 5 ky
Spini6
nuclear quadrupole moment
koha e zbulimit apo shpikjes1949
parity-

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

237Np

Numri i masës237
numri i neutroneve144
relative atomic mass
237,04817164 ± 0,000001201 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,144 ± 0,007 My
Spini5/2
nuclear quadrupole moment
3,886 ± 0,006
koha e zbulimit apo shpikjes1948
parity+

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

238Np

Numri i masës238
numri i neutroneve145
relative atomic mass
238,050944603 ± 0,00000122 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,099 ± 0,002 d
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1949
parity+

decay modeintensitet
β (β decay)100%

239Np

Numri i masës239
numri i neutroneve146
relative atomic mass
239,052937538 ± 0,000001406 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,356 ± 0,003 d
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1940
parity+

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

240Np

Numri i masës240
numri i neutroneve147
relative atomic mass
240,056163778 ± 0,000018284 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
61,9 ± 0,2 m
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes1953
parity+

decay modeintensitet
β (β decay)100%

241Np

Numri i masës241
numri i neutroneve148
relative atomic mass
241,058309671 ± 0,00010736 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
13,9 ± 0,2 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1959
parity+

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

242Np

Numri i masës242
numri i neutroneve149
relative atomic mass
242,061639548 ± 0,000214712 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,2 ± 0,2 m
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1979
parity+

decay modeintensitet
β (β decay)100%

243Np

Numri i masës243
numri i neutroneve150
relative atomic mass
243,064204 ± 0,000034 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,85 ± 0,15 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1979
parity+

decay modeintensitet
β (β decay)100%

244Np

Numri i masës244
numri i neutroneve151
relative atomic mass
244,067891 ± 0,000107 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,29 ± 0,16 m
Spini7
nuclear quadrupole moment
koha e zbulimit apo shpikjes1987
parity-

decay modeintensitet
β (β decay)100%

245Np

Numri i masës245
numri i neutroneve152
relative atomic mass
245,070693 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity+

decay modeintensitet
β (β decay)
Neptunium2

historia

zbuluesE.M. McMillan, P.H. Abelson
vendndodhja e zbulimitUnited States
koha e zbulimit apo shpikjes1940
EtimologjiaNamed for the planet Neptune.
pronunciationnep-TOO-ni-em (anglisht)

burim

Abundance
Abundance in Earth's crust
natural abundance (Oqeani)
natural abundance (Trupi i njeriut)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Diell)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants