Mendelebioa

Mendelebioa (Md)

Zenbaki atomikoa 101 duen elementu kimiko artifizial eta erradioaktiboa, transuranidoen multzokoa. Ziklotroi batean, einsteinioa alfa partikulekin bonbardatuz sortzen da
Atomic Number101
Atomic Weight258
masa-zenbaki244
Group
Period7
Blockf
protoi101 p+
neutroi143 n0
elektroi101 e-
Animated Bohrren eredu atomikoa of Md (Mendelebioa)

Propietate Fisiko

Erradio Atomiko
bolumen molar
Erradio Kobalente
173 pm
Metallic Radius
Erradio ioniko
109,5 pm
Crystal Radius
123,5 pm
Van der Waalsen erradio
246 pm
dentsitatea
10,3 g/cm³

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
ionizazio energia
ionizazio energia of Md (Mendelebioa)
Irakite-entalpia
urtze-entalpia
formazio entalpia estandarra
elektroi
elektroi geruza2, 8, 18, 32, 31, 8, 2
Bohrren eredu atomikoa: Md (Mendelebioa)
balentzia-elektroi2
Lewis egitura: Md (Mendelebioa)
electron configuration[Rn] 5f13 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f13 7s2
Enhanced Bohrren eredu atomikoa of Md (Mendelebioa)
Orbital Diagram of Md (Mendelebioa)
Oxidazio-egoera2, 3
Elektronegatibotasun
Electrophilicity Index
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
Melting Point
1.100,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore
Colorless
appearance
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
Bero-dilatazio
molar heat capacity
Specific Heat Capacity
indize adiabatiko
electrical properties
type
Eroankortasun elektriko
Erresistibitate elektriko
Supereroankortasun
Magnetismo
type
suszeptibilitate magnetiko (Mass)
suszeptibilitate magnetiko (Molar)
suszeptibilitate magnetiko (Volume)
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal Structure ()
lattice constant
Lattice Angles
materialen propietate mekaniko
Gogortasun
konprimagarritasun-modulu
Zizaila modulua
Youngen modulu
Poissonen modulu
Soinuaren lastertasun
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number45
Mendeleev Number38
Pettifor Number36
Geochemical Class
Goldschmidt classificationsynthetic

beste batzuk

Gas Basicity
polarizability
109 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
zenbaki kuantiko2F7/2
talde espazial ()

Isotopes of Mendelevium

Stable Isotopes0
Unstable Isotopes19
Natural Isotopes0

244Md

masa-zenbaki244
neutron number143
atomo-masa erlatibo
244,081157 ± 0,000402 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
0,36 ± 0,14 s
spin3
nuclear quadrupole moment
aurkikuntza-data2020
parity+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)
β+ SF (β+-delayed fission)14%

245Md

masa-zenbaki245
neutron number144
atomo-masa erlatibo
245,080864 ± 0,000279 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
0,38 ± 0,1 s
spin7/2
nuclear quadrupole moment
aurkikuntza-data1996
parity-

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

246Md

masa-zenbaki246
neutron number145
atomo-masa erlatibo
246,081713 ± 0,000279 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
0,92 ± 0,18 s
spin1
nuclear quadrupole moment
aurkikuntza-data1996
parity-

decay modeintensity
α (α emission)100%

247Md

masa-zenbaki247
neutron number146
atomo-masa erlatibo
247,08152 ± 0,000223 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,19 ± 0,09 s
spin7/2
nuclear quadrupole moment
aurkikuntza-data1981
parity-

decay modeintensity
α (α emission)100%
SF (spontaneous fission)0.1%

248Md

masa-zenbaki248
neutron number147
atomo-masa erlatibo
248,082607 ± 0,000198 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
7 ± 3 s
spin
nuclear quadrupole moment
aurkikuntza-data1973
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)80%
α (α emission)20%
β+ SF (β+-delayed fission)0.05%

249Md

masa-zenbaki249
neutron number148
atomo-masa erlatibo
249,082857155 ± 0,000176516 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
25,6 ± 0,9 s
spin7/2
nuclear quadrupole moment
aurkikuntza-data1973
parity-

decay modeintensity
α (α emission)75%
β+ (β+ decay; β+ = ϵ + e+)

250Md

masa-zenbaki250
neutron number149
atomo-masa erlatibo
250,084164934 ± 0,000097606 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
54 ± 4 s
spin2
nuclear quadrupole moment
aurkikuntza-data1973
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)93%
α (α emission)7%
β+ SF (β+-delayed fission)0.026%

251Md

masa-zenbaki251
neutron number150
atomo-masa erlatibo
251,084774287 ± 0,00002031 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,21 ± 0,23 m
spin7/2
nuclear quadrupole moment
aurkikuntza-data1973
parity-

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

252Md

masa-zenbaki252
neutron number151
atomo-masa erlatibo
252,086385 ± 0,000098 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,3 ± 0,8 m
spin1
nuclear quadrupole moment
aurkikuntza-data1973
parity+

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

253Md

masa-zenbaki253
neutron number152
atomo-masa erlatibo
253,087143 ± 0,000034 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
12 ± 8 m
spin7/2
nuclear quadrupole moment
aurkikuntza-data1992
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.7%

254Md

masa-zenbaki254
neutron number153
atomo-masa erlatibo
254,08959 ± 0,000107 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
10 ± 3 m
spin0
nuclear quadrupole moment
0
aurkikuntza-data1970
parity-

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

255Md

masa-zenbaki255
neutron number154
atomo-masa erlatibo
255,091081702 ± 0,000005976 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
27 ± 2 m
spin7/2
nuclear quadrupole moment
aurkikuntza-data1958
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)93%
α (α emission)7%
SF (spontaneous fission)

256Md

masa-zenbaki256
neutron number155
atomo-masa erlatibo
256,093888 ± 0,000133 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
77,7 ± 1,8 m
spin1
nuclear quadrupole moment
aurkikuntza-data1955
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)90.8%
α (α emission)9.2%
SF (spontaneous fission)3%

257Md

masa-zenbaki257
neutron number156
atomo-masa erlatibo
257,095537343 ± 0,000001683 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
5,52 ± 0,05 h
spin7/2
nuclear quadrupole moment
aurkikuntza-data1965
parity-

decay modeintensity
ϵ (electron capture)85%
α (α emission)15%
SF (spontaneous fission)

258Md

masa-zenbaki258
neutron number157
atomo-masa erlatibo
258,098433634 ± 0,000003729 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
51,59 ± 0,29 d
spin8
nuclear quadrupole moment
aurkikuntza-data1970
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)0.0015%
β (β decay)0.0015%

259Md

masa-zenbaki259
neutron number158
atomo-masa erlatibo
259,100445 ± 0,000108 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,6 ± 0,06 h
spin7/2
nuclear quadrupole moment
aurkikuntza-data1982
parity-

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

260Md

masa-zenbaki260
neutron number159
atomo-masa erlatibo
260,10365 ± 0,000339 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
27,8 ± 0,8 d
spin
nuclear quadrupole moment
aurkikuntza-data1989
parity

decay modeintensity
SF (spontaneous fission)100%
α (α emission)5%
ϵ (electron capture)5%
β (β decay)3.5%

261Md

masa-zenbaki261
neutron number160
atomo-masa erlatibo
261,105828 ± 0,000546 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin7/2
nuclear quadrupole moment
aurkikuntza-data
parity-

decay modeintensity
α (α emission)

262Md

masa-zenbaki262
neutron number161
atomo-masa erlatibo
262,109144 ± 0,000481 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin
nuclear quadrupole moment
aurkikuntza-data
parity

decay modeintensity
SF (spontaneous fission)
α (α emission)
Electron shell 101 Mendelevium

historia

aurkitzailea edo asmatzaileaG.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
aurkikuntzaren lekuaUnited States
aurkikuntza-data1955
etimologiaNamed in honor of the scientist Dmitri Ivanovitch Mendeleyev, who devised the periodic table.
pronunciationmen-deh-LEE-vi-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