Luntenu? (Rg)

chemical element with atomic number 111

Atomic Number	111
Atomic Weight	281
mass number	272

Group	11
Period	7
Block	d

Proton	111 p⁺
Netron	161 n⁰
Eléktron	111 e^-

Physical Property

Atomic Radius
molar volume
covalent radius	121 pm 116 pm 118 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density	28,7 g/cm³

Chemical Property

molungé

proton affinity
electron affinity
ionization energy
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
Eléktron

electron shell	2, 8, 18, 32, 32, 17, 2

valence electron	1 ⓘ

electron configuration	[Rn] 5f¹⁴ 6d¹⁰ 7s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹⁴ 6d¹⁰ 7s¹

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
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	IB
IUPAC Group	IB
Glawe Number
Mendeleev Number	74
Pettifor Number
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	32 ± 6 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
quantum number	2S1/2
space group	()

Isotopes of Roentgenium

Stable Isotopes	0
Unstable Isotopes	15
Natural Isotopes	0

²⁷²Rg

mass number	272
neutron number	161
Relative Atomic Mass	272,153273 ± 0,000251 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	4,2 ± 1,1 ms
spin
nuclear quadrupole moment
time of discovery or invention	1995
parity

decay mode	intensity
α (α emission)	100%

²⁷³Rg

mass number	273
neutron number	162
Relative Atomic Mass	273,153393 ± 0,000429 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)

²⁷⁴Rg

mass number	274
neutron number	163
Relative Atomic Mass	274,155247 ± 0,000225 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	20 ± 11 ms
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
α (α emission)	100%

²⁷⁵Rg

mass number	275
neutron number	164
Relative Atomic Mass	275,156088 ± 0,000479 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)

²⁷⁶Rg

mass number	276
neutron number	165
Relative Atomic Mass	276,158226 ± 0,000675 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)

²⁷⁷Rg

mass number	277
neutron number	166
Relative Atomic Mass	277,159322 ± 0,000504 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)

²⁷⁸Rg

mass number	278
neutron number	167
Relative Atomic Mass	278,16159 ± 0,000417 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	8 ± 5 ms
spin
nuclear quadrupole moment
time of discovery or invention	2007
parity

decay mode	intensity
α (α emission)	100%

²⁷⁹Rg

mass number	279
neutron number	168
Relative Atomic Mass	279,16288 ± 0,000453 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	170 ± 110 ms
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
α (α emission)	100%

²⁸⁰Rg

mass number	280
neutron number	169
Relative Atomic Mass	280,165204 ± 0,000571 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	4,3 ± 0,5 s
spin
nuclear quadrupole moment
time of discovery or invention	2004
parity

decay mode	intensity
α (α emission)	100%

²⁸¹Rg

mass number	281
neutron number	170
Relative Atomic Mass	281,166757 ± 0,000831 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	19 ± 5 s
spin
nuclear quadrupole moment
time of discovery or invention	2010
parity

decay mode	intensity
SF (spontaneous fission)	87%
α (α emission)	13%

²⁸²Rg

mass number	282
neutron number	171
Relative Atomic Mass	282,169343 ± 0,000631 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	130 ± 50 s
spin
nuclear quadrupole moment
time of discovery or invention	2010
parity

decay mode	intensity
α (α emission)	100%

²⁸³Rg

mass number	283
neutron number	172
Relative Atomic Mass	283,171101 ± 0,000728 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)

²⁸⁴Rg

mass number	284
neutron number	173
Relative Atomic Mass	284,173882 ± 0,000537 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)

²⁸⁵Rg

mass number	285
neutron number	174
Relative Atomic Mass	285,175771 ± 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)

²⁸⁶Rg

mass number	286
neutron number	175
Relative Atomic Mass	286,178756 ± 0,000492 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	1994
etymology	Named in honor of the physicist Wilhelm Roentgen.
pronunciation	oon-nun-OON-i-em (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

Luntenu? on ChemicalAid

roentgenium

Australian Educational Vocabulary ID	scot/9704
CAS Registry Number	54386-24-2
Elhuyar ZTH ID	133475
Encyclopædia Britannica Online ID	science/roentgenium
Freebase ID	/m/025tpyw
GND ID	7635623-1
Gran Enciclopèdia Catalana ID	0282399
Great Russian Encyclopedia Online ID	3505864
KBpedia ID	Roentgenium
Library of Congress authority ID	sh2012003700
NE.se ID	röntgenium
NE.se ID	unununium
National Library of Israel J9U ID	987007595444605171
OmegaWiki Defined Meaning	350608
Online PWN Encyclopedia ID	4005803
Store norske leksikon ID	røntgenium
USGS Thesaurus ID	1602
WordNet 3.1 Synset ID	14677003-n

Luntenu? (Rg)

Physical Property

Chemical Property

other

Isotopes of Roentgenium

272Rg

273Rg

274Rg

275Rg

276Rg

277Rg

278Rg

279Rg

280Rg

281Rg

282Rg

283Rg

284Rg

285Rg

286Rg

lisoló

source

Nuclear Screening Constants

²⁷²Rg

²⁷³Rg

²⁷⁴Rg

²⁷⁵Rg

²⁷⁶Rg

²⁷⁷Rg

²⁷⁸Rg

²⁷⁹Rg

²⁸⁰Rg

²⁸¹Rg

²⁸²Rg

²⁸³Rg

²⁸⁴Rg

²⁸⁵Rg

²⁸⁶Rg