Mendelevijs (Md)

mākslīgs ķīmiskais elements, kura atomskaitlis ir 101 un simbols Md

Atomic Number	101
Atomic Weight	258
Masas skaitlis	244

Group
Period	7
Block	f

protons	101 p⁺
neitrons	143 n⁰
elektrons	101 e^-

Animated Bora atoma struktūras modelis of Md (Mendelevijs)

Fizikāla Īpašība

Atoma Rādiuss
molar volume
Covalent Radius	173 pm 139 pm
Metallic Radius
ionic radius	109,5 pm
Crystal Radius	123,5 pm
Van der Waals radius	246 pm 327,4 pm
blīvums	10,3 g/cm³

Chemical Property

enerģija

proton affinity
Elektrontieksme
jonizācijas potenciāls	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

enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
elektrons

electron shell	2, 8, 18, 32, 31, 8, 2

vērtības elektrons	2 ⓘ

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

Oksidēšanas pakāpe	2, 3
elektronegativitāte	0.23542
Electrophilicity Index
fundamentālais agregātstāvoklis

agregātstāvoklis	Solid
gaseous state of matter
Boiling Point
Melting Point	1 100,15 K
critical pressure
critical temperature
trīskāršais punkts
appearance
krāsa	Colorless #ffffff #b30da6 #b30da6
appearance
Laušanas koeficients
thermodynamic material property
Thermal Conductivity
Termiskā izplešanās
Molārā siltumietilpība
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
īpatnējā pretestība
Supravadītspēja
Magnētisms
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
struktūra
Crystal Structure	()
lattice constant
Lattice Angles
mechanical property
Cietība
tilpuma elastības modulis
shear modulus
Junga modulis
Poisson's ratio
skaņas ātrums
klasifikācija
Category	Actinides, Actinides
CAS Group
IUPAC Group
Glawe Number	45
Mendeleev Number	38
Pettifor Number	36
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	109 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
quantum number	2F7/2
space group	()

Isotopes of Mendelevium

Stable Isotopes	0
Unstable Isotopes	19
Natural Isotopes	0

²⁴⁴Md

Masas skaitlis	244
neutron number	143
Relative Atomic Mass	244,081157 ± 0,000402 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	0,36 ± 0,14 s
spins	3
nuclear quadrupole moment
atklāšanas datums	2020
parity	+

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

²⁴⁵Md

Masas skaitlis	245
neutron number	144
Relative Atomic Mass	245,080864 ± 0,000279 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	0,38 ± 0,1 s
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1996
parity	-

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

²⁴⁶Md

Masas skaitlis	246
neutron number	145
Relative Atomic Mass	246,081713 ± 0,000279 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	0,92 ± 0,18 s
spins	1
nuclear quadrupole moment
atklāšanas datums	1996
parity	-

decay mode	intensity
α (α emission)	100%

²⁴⁷Md

Masas skaitlis	247
neutron number	146
Relative Atomic Mass	247,08152 ± 0,000223 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	1,19 ± 0,09 s
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1981
parity	-

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

²⁴⁸Md

Masas skaitlis	248
neutron number	147
Relative Atomic Mass	248,082607 ± 0,000198 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	7 ± 3 s
spins
nuclear quadrupole moment
atklāšanas datums	1973
parity

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

²⁴⁹Md

Masas skaitlis	249
neutron number	148
Relative Atomic Mass	249,082857155 ± 0,000176516 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	25,6 ± 0,9 s
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1973
parity	-

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

²⁵⁰Md

Masas skaitlis	250
neutron number	149
Relative Atomic Mass	250,084164934 ± 0,000097606 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	54 ± 4 s
spins	2
nuclear quadrupole moment
atklāšanas datums	1973
parity	-

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

²⁵¹Md

Masas skaitlis	251
neutron number	150
Relative Atomic Mass	251,084774287 ± 0,00002031 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	4,21 ± 0,23 m
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1973
parity	-

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

²⁵²Md

Masas skaitlis	252
neutron number	151
Relative Atomic Mass	252,086385 ± 0,000098 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	2,3 ± 0,8 m
spins	1
nuclear quadrupole moment
atklāšanas datums	1973
parity	+

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

²⁵³Md

Masas skaitlis	253
neutron number	152
Relative Atomic Mass	253,087143 ± 0,000034 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	12 ± 8 m
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1992
parity	-

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

²⁵⁴Md

Masas skaitlis	254
neutron number	153
Relative Atomic Mass	254,08959 ± 0,000107 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	10 ± 3 m
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1970
parity	-

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

²⁵⁵Md

Masas skaitlis	255
neutron number	154
Relative Atomic Mass	255,091081702 ± 0,000005976 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	27 ± 2 m
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1958
parity	-

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

²⁵⁶Md

Masas skaitlis	256
neutron number	155
Relative Atomic Mass	256,093888 ± 0,000133 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	77,7 ± 1,8 m
spins	1
nuclear quadrupole moment
atklāšanas datums	1955
parity	-

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

²⁵⁷Md

Masas skaitlis	257
neutron number	156
Relative Atomic Mass	257,095537343 ± 0,000001683 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	5,52 ± 0,05 h
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1965
parity	-

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

²⁵⁸Md

Masas skaitlis	258
neutron number	157
Relative Atomic Mass	258,098433634 ± 0,000003729 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	51,59 ± 0,29 d
spins	8
nuclear quadrupole moment
atklāšanas datums	1970
parity	-

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

²⁵⁹Md

Masas skaitlis	259
neutron number	158
Relative Atomic Mass	259,100445 ± 0,000108 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	1,6 ± 0,06 h
spins	7/2
nuclear quadrupole moment
atklāšanas datums	1982
parity	-

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

²⁶⁰Md

Masas skaitlis	260
neutron number	159
Relative Atomic Mass	260,10365 ± 0,000339 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	27,8 ± 0,8 d
spins
nuclear quadrupole moment
atklāšanas datums	1989
parity

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

²⁶¹Md

Masas skaitlis	261
neutron number	160
Relative Atomic Mass	261,105828 ± 0,000546 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	7/2
nuclear quadrupole moment
atklāšanas datums
parity	-

decay mode	intensity
α (α emission)

²⁶²Md

Masas skaitlis	262
neutron number	161
Relative Atomic Mass	262,109144 ± 0,000481 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins
nuclear quadrupole moment
atklāšanas datums
parity

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

vēsture

atklājējs vai izgudrotājs	G.T.Seaborg, S.G.Tompson, A.Ghiorso, K.Street Jr.
atraduma atrašanās vieta	United States
atklāšanas datums	1955
Etimoloģija	Named in honor of the scientist Dmitri Ivanovitch Mendeleyev, who devised the periodic table.
izruna	men-deh-LEE-vi-em (angļu)

avots

Abundance
Abundance in Earth's crust
natural abundance (okeāns)
natural abundance (cilvēka ķermenis)	0 %
natural abundance (meteoroīds)	0 %
natural abundance (Saule)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Mendelevijs on ChemicalAid

Austrālijas Izglītības vārdnīcas identifikators	scot/3543
CAS reģistrācijas numurs	7440-11-1
ChEBI ID	33395
ChemSpider ID	22385
DSSTOX compound identifier	DTXCID90147877
DSSTox identifikators	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 tiešsaistes ID	science/mendelevium
Encyclopædia Universalis ID	mendelevium
Freebase identifikators	/m/025s0rf
French Vikidia ID	Mendélévium
GND identifikators	4169413-2
InChI	InChI=1S/Md
InChIKey	MQVSLOYRCXQRPM-UHFFFAOYSA-N
Interlingual Index ID	i113965
KBpedia ID	Mendelevium
Katalāņu Lielās enciklopēdijas kods	0122687
Krievijas Lielās enciklopēdijas tiešsaistes kods	2204025
MeSH ID	D008573
OmegaWiki definētā nozīme	335094
PubChem ID (CID)	23943
Quora temata ID	Mendelevium
Römpp online ID	RD-13-01207
Store norske leksikon ID	mendelevium
Treccani ID	mendelevio
UNII	LW3E571O0Z
USGS Thesaurus ID	1502

Mendelevijs (Md)

Fizikāla Īpašība

Chemical Property

other

Isotopes of Mendelevium

244Md

245Md

246Md

247Md

248Md

249Md

250Md

251Md

252Md

253Md

254Md

255Md

256Md

257Md

258Md

259Md

260Md

261Md

262Md

vēsture

avots

Nuclear Screening Constants

²⁴⁴Md

²⁴⁵Md

²⁴⁶Md

²⁴⁷Md

²⁴⁸Md

²⁴⁹Md

²⁵⁰Md

²⁵¹Md

²⁵²Md

²⁵³Md

²⁵⁴Md

²⁵⁵Md

²⁵⁶Md

²⁵⁷Md

²⁵⁸Md

²⁵⁹Md

²⁶⁰Md

²⁶¹Md

²⁶²Md