Mendelebioa (Md)

Zenbaki atomikoa 101 duen elementu kimiko artifizial eta erradioaktiboa, transuranidoen multzokoa. Ziklotroi batean, einsteinioa alfa partikulekin bonbardatuz sortzen da

Atomic Number	101
Atomic Weight	258
masa-zenbaki	244

Group
Period	7
Block	f

protoi	101 p⁺
neutroi	143 n⁰
elektroi	101 e^-

Animated Bohrren eredu atomikoa of Md (Mendelebioa)

Propietate Fisiko

Erradio Atomiko
bolumen molar
Erradio Kobalente	173 pm 139 pm
Metallic Radius
Erradio ioniko	109,5 pm
Crystal Radius	123,5 pm
Van der Waalsen erradio	246 pm 327,4 pm
dentsitatea	10,3 g/cm³

Magnitude Fisiko

energia

proton affinity
Afinitate elektroniko
ionizazio energia	6,58 eV/particle 10 eV/particle 24,3 eV/particle 40 eV/particle 54,1 eV/particle 76 eV/particle 96 eV/particle 115,1 eV/particle 143,9 eV/particle 162 eV/particle 187 eV/particle 215 eV/particle 240 eV/particle 260 eV/particle 282 eV/particle 307 eV/particle 334 eV/particle 360 eV/particle 386 eV/particle 412 eV/particle 438 eV/particle 462 eV/particle 486 eV/particle 659 eV/particle 690 eV/particle 723 eV/particle 760 eV/particle 794 eV/particle 828 eV/particle 885 eV/particle 920 eV/particle 958 eV/particle 994 eV/particle 1.160 eV/particle 1.200 eV/particle 1.250 eV/particle 1.290 eV/particle 1.430 eV/particle 1.480 eV/particle 1.620 eV/particle 1.660 eV/particle 1.840 eV/particle 1.930 eV/particle 2.020 eV/particle 2.110 eV/particle 2.200 eV/particle 2.290 eV/particle 2.380 eV/particle 2.000 eV/particle 2.580 eV/particle 2.680 eV/particle 2.760 eV/particle 2.860 eV/particle 2.950 eV/particle 3.050 eV/particle 3.513 eV/particle 3.592 eV/particle 3.675 eV/particle 3.762 eV/particle 3.845 eV/particle 3.926 eV/particle 4.109 eV/particle 4.194 eV/particle 4.286 eV/particle 4.371 eV/particle 4.720 eV/particle 4.800 eV/particle 4.890 eV/particle 4.970 eV/particle 5.580 eV/particle 5.680 eV/particle 5.930 eV/particle 6.030 eV/particle 9.430 eV/particle 9.620 eV/particle 9.810 eV/particle 10.020 eV/particle 10.220 eV/particle 10.410 eV/particle 10.930 eV/particle 11.130 eV/particle 11.360 eV/particle 11.560 eV/particle 12.140 eV/particle 12.310 eV/particle 12.500 eV/particle 12.680 eV/particle 14.560 eV/particle 14.800 eV/particle 15.200 eV/particle 15.400 eV/particle 31.000 eV/particle 31.500 eV/particle 32.000 eV/particle 32.500 eV/particle 39.500 eV/particle 40.100 eV/particle 41.000 eV/particle 41.548 eV/particle 164.764 eV/particle

Irakite-entalpia
urtze-entalpia
formazio entalpia estandarra
elektroi

elektroi geruza	2, 8, 18, 32, 31, 8, 2

balentzia-elektroi	2 ⓘ

electron configuration	[Rn] 5f¹³ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹³ 7s²

Oxidazio-egoera	2, 3
Elektronegatibotasun	0.23542
Electrophilicity Index
materiaren funtsezko egoera

materiaren egoera	Solid
materiaren egoera gaseoso
Boiling Point
Melting Point	1.100,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore	Colorless #ffffff #b30da6 #b30da6
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
Category	Actinides, Actinides
CAS Group
IUPAC Group
Glawe Number	45
Mendeleev Number	38
Pettifor Number	36
Geochemical Class
Goldschmidt classification	synthetic

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Gas Basicity
polarizability	109 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
zenbaki kuantiko	2F7/2
talde espazial	()

Isotopes of Mendelevium

Stable Isotopes	0
Unstable Isotopes	19
Natural Isotopes	0

²⁴⁴Md

masa-zenbaki	244
neutron number	143
Atomo-Masa Erlatibo	244,081157 ± 0,000402 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	0,36 ± 0,14 s
spin	3
nuclear quadrupole moment
aurkikuntza-data	2020
parity	+

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

²⁴⁵Md

masa-zenbaki	245
neutron number	144
Atomo-Masa Erlatibo	245,080864 ± 0,000279 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	0,38 ± 0,1 s
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1996
parity	-

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

²⁴⁶Md

masa-zenbaki	246
neutron number	145
Atomo-Masa Erlatibo	246,081713 ± 0,000279 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	0,92 ± 0,18 s
spin	1
nuclear quadrupole moment
aurkikuntza-data	1996
parity	-

decay mode	intensity
α (α emission)	100%

²⁴⁷Md

masa-zenbaki	247
neutron number	146
Atomo-Masa Erlatibo	247,08152 ± 0,000223 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	1,19 ± 0,09 s
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1981
parity	-

decay mode	intensity
α (α emission)	100%
SF (spontaneous fission)	0.1%

²⁴⁸Md

masa-zenbaki	248
neutron number	147
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-data	1973
parity

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

²⁴⁹Md

masa-zenbaki	249
neutron number	148
Atomo-Masa Erlatibo	249,082857155 ± 0,000176516 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	25,6 ± 0,9 s
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1973
parity	-

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

²⁵⁰Md

masa-zenbaki	250
neutron number	149
Atomo-Masa Erlatibo	250,084164934 ± 0,000097606 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	54 ± 4 s
spin	2
nuclear quadrupole moment
aurkikuntza-data	1973
parity	-

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

²⁵¹Md

masa-zenbaki	251
neutron number	150
Atomo-Masa Erlatibo	251,084774287 ± 0,00002031 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	4,21 ± 0,23 m
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1973
parity	-

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

²⁵²Md

masa-zenbaki	252
neutron number	151
Atomo-Masa Erlatibo	252,086385 ± 0,000098 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	2,3 ± 0,8 m
spin	1
nuclear quadrupole moment
aurkikuntza-data	1973
parity	+

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

²⁵³Md

masa-zenbaki	253
neutron number	152
Atomo-Masa Erlatibo	253,087143 ± 0,000034 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	12 ± 8 m
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1992
parity	-

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

²⁵⁴Md

masa-zenbaki	254
neutron number	153
Atomo-Masa Erlatibo	254,08959 ± 0,000107 Da
g-factor	0
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	10 ± 3 m
spin	0
nuclear quadrupole moment	0
aurkikuntza-data	1970
parity	-

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

²⁵⁵Md

masa-zenbaki	255
neutron number	154
Atomo-Masa Erlatibo	255,091081702 ± 0,000005976 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	27 ± 2 m
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1958
parity	-

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

²⁵⁶Md

masa-zenbaki	256
neutron number	155
Atomo-Masa Erlatibo	256,093888 ± 0,000133 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	77,7 ± 1,8 m
spin	1
nuclear quadrupole moment
aurkikuntza-data	1955
parity	-

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

²⁵⁷Md

masa-zenbaki	257
neutron number	156
Atomo-Masa Erlatibo	257,095537343 ± 0,000001683 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	5,52 ± 0,05 h
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1965
parity	-

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

²⁵⁸Md

masa-zenbaki	258
neutron number	157
Atomo-Masa Erlatibo	258,098433634 ± 0,000003729 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	51,59 ± 0,29 d
spin	8
nuclear quadrupole moment
aurkikuntza-data	1970
parity	-

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	0.0015%
β⁻ (β⁻ decay)	0.0015%

²⁵⁹Md

masa-zenbaki	259
neutron number	158
Atomo-Masa Erlatibo	259,100445 ± 0,000108 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo	1,6 ± 0,06 h
spin	7/2
nuclear quadrupole moment
aurkikuntza-data	1982
parity	-

decay mode	intensity
SF (spontaneous fission)	100%
α (α emission)

²⁶⁰Md

masa-zenbaki	260
neutron number	159
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-data	1989
parity

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

²⁶¹Md

masa-zenbaki	261
neutron number	160
Atomo-Masa Erlatibo	261,105828 ± 0,000546 Da
g-factor
natural abundance
desintegrazio erradioaktibo	☢️ radioactive element
Semidesintegrazio-periodo
spin	7/2
nuclear quadrupole moment
aurkikuntza-data
parity	-

decay mode	intensity
α (α emission)

²⁶²Md

masa-zenbaki	262
neutron number	161
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 mode	intensity
SF (spontaneous fission)
α (α emission)

historia

aurkitzailea edo asmatzailea	G.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
aurkikuntzaren lekua	United States
aurkikuntza-data	1955
etimologia	Named in honor of the scientist Dmitri Ivanovitch Mendeleyev, who devised the periodic table.
pronunciation	men-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

Mendelebioa on ChemicalAid

Australian Educational Vocabulary ID	scot/3543
CAS zenbakia	7440-11-1
ChEBI-ren identifikatzailea	33395
ChemSpider-ren identifikatzailea	22385
DSSTOX compound identifier	DTXCID90147877
DSSTox substance ID	DTXSID90225386
Den Store Danske ID	mendelevium
Elhuyar ZTH ID	028036
Encyclopedia of China (Third Edition) ID	185251
Encyclopedia of China ID (Second Edition)	220827
Encyclopædia Britannica Online-ren identifikatzailea	science/mendelevium
Encyclopædia Universalis ID	mendelevium
Freebase-ren identifikadorea	/m/025s0rf
French Vikidia ID	Mendélévium
GEC-en identifikatzailea	0122687
GND identifikadorea	4169413-2
Great Russian Encyclopedia Online ID	2204025
InChI	InChI=1S/Md
InChIKey	MQVSLOYRCXQRPM-UHFFFAOYSA-N
Interlingual Index ID	i113965
KBpedia ID	Mendelevium
MeSH identifikadorea	D008573
OmegaWikiren esanahiaren definizioa	335094
PubChem-en identifikatzailea	23943
Quora gaiaren identifikadorea	Mendelevium
Römpp online ID	RD-13-01207
Store norske leksikon ID	mendelevium
Treccani ID	mendelevio
UNII	LW3E571O0Z
USGS Thesaurus ID	1502

Mendelebioa (Md)

Propietate Fisiko

Magnitude Fisiko

beste batzuk

Isotopes of Mendelevium

244Md

245Md

246Md

247Md

248Md

249Md

250Md

251Md

252Md

253Md

254Md

255Md

256Md

257Md

258Md

259Md

260Md

261Md

262Md

historia

source

Nuclear Screening Constants

²⁴⁴Md

²⁴⁵Md

²⁴⁶Md

²⁴⁷Md

²⁴⁸Md

²⁴⁹Md

²⁵⁰Md

²⁵¹Md

²⁵²Md

²⁵³Md

²⁵⁴Md

²⁵⁵Md

²⁵⁶Md

²⁵⁷Md

²⁵⁸Md

²⁵⁹Md

²⁶⁰Md

²⁶¹Md

²⁶²Md