Meitenu (Mt)

chemical element with atomic number 109 and symbol Mt

Atomic Number	109
Atomic Weight	276
mass number	265

Group	9
Period	7
Block	d

Proton	109 p⁺
Netron	156 n⁰
Eléktron	109 e^-

Physical Property

Atomic Radius
molar volume
covalent radius	129 pm 125 pm 113 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density	37,4 g/cm³

Chemical Property

molungé

proton affinity
electron affinity
ionization energy	50 eV/particle 94 eV/particle 109 eV/particle 187 eV/particle 202 eV/particle 235,9 eV/particle 257 eV/particle 289 eV/particle 318 eV/particle 346 eV/particle 386 eV/particle 406 eV/particle 445 eV/particle 1.035 eV/particle 1.072 eV/particle 1.112 eV/particle 1.154 eV/particle 1.195 eV/particle 1.234 eV/particle 1.311 eV/particle 1.352 eV/particle 1.397 eV/particle 1.439 eV/particle 4.464 eV/particle 4.551 eV/particle 4.640 eV/particle 4.740 eV/particle 4.830 eV/particle 4.920 eV/particle 5.160 eV/particle 5.250 eV/particle 5.360 eV/particle 5.450 eV/particle 5.840 eV/particle 5.930 eV/particle 6.030 eV/particle 6.130 eV/particle 7.040 eV/particle 7.150 eV/particle 7.440 eV/particle 7.550 eV/particle 11.460 eV/particle 11.660 eV/particle 11.870 eV/particle 12.100 eV/particle 12.320 eV/particle 12.530 eV/particle 13.200 eV/particle 13.400 eV/particle 13.700 eV/particle 13.900 eV/particle 14.500 eV/particle 14.700 eV/particle 14.900 eV/particle 15.100 eV/particle 17.900 eV/particle 18.200 eV/particle 18.700 eV/particle 18.900 eV/particle 36.700 eV/particle 37.200 eV/particle 37.800 eV/particle 38.300 eV/particle 48.500 eV/particle 49.400 eV/particle 50.300 eV/particle 199.606 eV/particle

enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
Eléktron

electron shell	2, 8, 18, 32, 32, 15, 2

valence electron	2 ⓘ

electron configuration	[Rn] 5f¹⁴ 6d⁷ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹⁴ 6d⁷ 7s²

oxidation number
electronegativity
Electrophilicity Index
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Lángi	Colorless #eb0026
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure	()
lattice constant
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
Category	Transition metals, Transition metals
CAS Group	VIIIA
IUPAC Group	VIII
Glawe Number
Mendeleev Number	66
Pettifor Number
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	34 ± 3 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
quantum number	4F9/2
space group	()

Isotopes of Meitnerium

Stable Isotopes	0
Unstable Isotopes	18
Natural Isotopes	0

²⁶⁵Mt

mass number	265
neutron number	156
Relative Atomic Mass	265,135937 ± 0,000471 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

decay mode	intensity
α (α emission)

²⁶⁶Mt

mass number	266
neutron number	157
Relative Atomic Mass	266,137062253 ± 0,000103568 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	2 ± 0,5 ms
spin
nuclear quadrupole moment
time of discovery or invention	1982
parity

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

²⁶⁷Mt

mass number	267
neutron number	158
Relative Atomic Mass	267,137189 ± 0,00054 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

decay mode	intensity
α (α emission)

²⁶⁸Mt

mass number	268
neutron number	159
Relative Atomic Mass	268,138649 ± 0,00025 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	23 ± 7 ms
spin
nuclear quadrupole moment
time of discovery or invention	1995
parity

decay mode	intensity
α (α emission)	100%

²⁶⁹Mt

mass number	269
neutron number	160
Relative Atomic Mass	269,138809 ± 0,000335 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

decay mode	intensity
α (α emission)

²⁷⁰Mt

mass number	270
neutron number	161
Relative Atomic Mass	270,140322 ± 0,000205 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	800 ± 400 ms
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
α (α emission)	100%

²⁷¹Mt

mass number	271
neutron number	162
Relative Atomic Mass	271,140741 ± 0,000354 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

decay mode	intensity
α (α emission)

²⁷²Mt

mass number	272
neutron number	163
Relative Atomic Mass	272,143298 ± 0,000521 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

²⁷³Mt

mass number	273
neutron number	164
Relative Atomic Mass	273,144695 ± 0,000455 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

²⁷⁴Mt

mass number	274
neutron number	165
Relative Atomic Mass	274,147343 ± 0,000404 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	850 ± 540 ms
spin
nuclear quadrupole moment
time of discovery or invention	2007
parity

decay mode	intensity
α (α emission)	100%

²⁷⁵Mt

mass number	275
neutron number	166
Relative Atomic Mass	275,148972 ± 0,000416 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	31 ± 17 ms
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
α (α emission)	100%

²⁷⁶Mt

mass number	276
neutron number	167
Relative Atomic Mass	276,151705 ± 0,000571 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	700 ± 80 ms
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
α (α emission)	100%

²⁷⁷Mt

mass number	277
neutron number	168
Relative Atomic Mass	277,153525 ± 0,000711 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	9 ± 6 s
spin
nuclear quadrupole moment
time of discovery or invention	2013
parity

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

²⁷⁸Mt

mass number	278
neutron number	169
Relative Atomic Mass	278,156487 ± 0,000621 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	6 ± 3 s
spin
nuclear quadrupole moment
time of discovery or invention	2010
parity

decay mode	intensity
α (α emission)	100%

²⁷⁹Mt

mass number	279
neutron number	170
Relative Atomic Mass	279,158439 ± 0,00072 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

²⁸⁰Mt

mass number	280
neutron number	171
Relative Atomic Mass	280,161579 ± 0,000644 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

²⁸¹Mt

mass number	281
neutron number	172
Relative Atomic Mass	281,163608 ± 0,000644 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

²⁸²Mt

mass number	282
neutron number	173
Relative Atomic Mass	282,166888 ± 0,00048 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention	2016
parity

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

lisoló

discoverer or inventor	Heavy Ion Research Laboratory (HIRL)
location of discovery	Germany
time of discovery or invention	1982
etymology	Named in honor of Lise Mietner
pronunciation	MITE-ner-i-um (lingɛlɛ́sa)

source

Abundance
Abundance in Earth's crust
natural abundance (ocean)
natural abundance (human body)	0 %
natural abundance (meteoroid)	0 %
natural abundance (Mói)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Meitenu on ChemicalAid

meitnerium

Australian Educational Vocabulary ID	scot/3542
CAS Registry Number	54038-01-6
Den Store Danske ID	meitnerium
Elhuyar ZTH ID	064406
Encyclopædia Britannica Online ID	science/meitnerium
Freebase ID	/m/025s2kx
French Vikidia ID	Meitnérium
GND ID	4518308-9
Gran Enciclopèdia Catalana ID	0276180
Great Russian Encyclopedia Online ID	2201395
KBpedia ID	Meitnerium
OmegaWiki Defined Meaning	333247
Store norske leksikon ID	meitnerium
USGS Thesaurus ID	1501

Meitenu (Mt)

Physical Property

Chemical Property

other

Isotopes of Meitnerium

265Mt

266Mt

267Mt

268Mt

269Mt

270Mt

271Mt

272Mt

273Mt

274Mt

275Mt

276Mt

277Mt

278Mt

279Mt

280Mt

281Mt

282Mt

lisoló

source

Nuclear Screening Constants

²⁶⁵Mt

²⁶⁶Mt

²⁶⁷Mt

²⁶⁸Mt

²⁶⁹Mt

²⁷⁰Mt

²⁷¹Mt

²⁷²Mt

²⁷³Mt

²⁷⁴Mt

²⁷⁵Mt

²⁷⁶Mt

²⁷⁷Mt

²⁷⁸Mt

²⁷⁹Mt

²⁸⁰Mt

²⁸¹Mt

²⁸²Mt