Arsenas (As)

chemical element with symbol As and atomic number 33

Atomic Number	33
Atomic Weight	74.921595
mass number	75

Group	15
Period	4
Block	p

protonas	33 p⁺
neutronas	42 n⁰
elektronas	33 e^-

Fizikinė Ypatybė

Atomo Spindulys	115 pm 231 pm
molinis tūris	13,1 cm³/mol
Kovalentinis spindulys	121 pm 114 pm 106 pm 126 pm 119 pm
Metallic Radius	121 pm 148 pm
ionic radius	58 pm 33,5 pm 46 pm
Crystal Radius	72 pm 47,5 pm 60 pm
Van der Waals radius	205 pm 185 pm 415 pm 185 pm 236 pm 423 pm
tankis	5,75 g/cm³ 5 220 kg/m³

Chemical Property

energija

proton affinity
electron affinity	0,804 eV/particle
ionization energy	9,789 eV/particle 18,5892 eV/particle 28,349 eV/particle 50,15 eV/particle 62,767 eV/particle 121,19 eV/particle 147 eV/particle 180 eV/particle 213 eV/particle 247 eV/particle 296 eV/particle 333 eV/particle 375 eV/particle 418 eV/particle 460 eV/particle 587,6 eV/particle 628,82 eV/particle 672,9 eV/particle 728,9 eV/particle 774 eV/particle 814 eV/particle 911,7 eV/particle 956,791 eV/particle 2 357 eV/particle 2 486 eV/particle 2 626 eV/particle 2 766 eV/particle 2 938 eV/particle 3 088,1 eV/particle 3 287 eV/particle 3 411,643 eV/particle 14 447,6778 eV/particle 15 028,906 eV/particle

Garavimo šiluma	32,4 kJ/mol
lydymosi šiluma
standard enthalpy of formation	302,5 kJ/mol
elektronas

electron shell	2, 8, 18, 5

Valentinis elektronas	5 ⓘ

elektronų konfigūracija	[Ar] 3d¹⁰ 4s² 4p³ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p³

oksidacijos laipsnis	-3, -2, -1, 0, 1, 2, 3, 4, 5
Elektroneigiamumas	13,08 eV/particle 0.2068208 2.18
Electrophilicity Index	1,5610969532554257 eV/particle
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	889,15 K
Melting Point	1 090,15 K
critical pressure	22,3 MPa
critical temperature	1 673,15 K
triple point	1 090,15 K 3 700 kPa
appearance
spalva	Silver #ff1493 #bd80e3 #bd80e3
appearance	metallic grey
lūžio rodiklis	1,001552
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity	24,64 J/(mol K)
Specific Heat Capacity	0,329 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
Elektrinis laidumas	3,3 MS/m
electrical resistivity	0,0000003 Ω*m
Superlaidumas
Magnetizmas
type	diamagnetic
magnetic susceptibility (Mass)	−0,0000000039 m³/Kg
magnetic susceptibility (Molar)	−0,000000000292 m³/mol
magnetic susceptibility (Volume)	−0,0000223
magnetic ordering
Curie temperature
Néel temperature
struktūra
Crystal Structure	Simple Trigonal (RHL)
Gardelės konstanta	4,13 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
kietis	1 440 MPa 3,5 MPa
bulk modulus	22 GPa
shear modulus
Jungo modulis	8 GPa
Puasono santykis
garso greitis
classification
Category	Metalloids, Metalloids
CAS Group	VB
IUPAC Group	VA
Glawe Number	90
Mendeleev Number	95
Pettifor Number	89
Geochemical Class	semi-volatile
Goldšmito klasifikacija	chalcophile

other

Gas Basicity
polarizability	30 ± 1 a₀
C6 Dispersion Coefficient	246 a₀ 260 a₀
allotrope	Yellow Arsenic, Black Arsenic, Gray Arsenic
Neutron cross section	4,2
Neutron Mass Absorption	0,002
quantum number	4S3/2
space group	166 (R_3m)

Isotopes of Arsenic

Stable Isotopes	1
Unstable Isotopes	32
Natural Isotopes	1

⁶⁰As

mass number	60
neutron number	27
Relative Atomic Mass	59,993945 ± 0,000429 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys	5
nuclear quadrupole moment
atradimo data
parity	+

decay mode	Intensyvumas
p (proton emission)

⁶¹As

mass number	61
neutron number	28
Relative Atomic Mass	60,981535 ± 0,000322 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys	3/2
nuclear quadrupole moment
atradimo data
parity	-

decay mode	Intensyvumas
p (proton emission)

⁶²As

mass number	62
neutron number	29
Relative Atomic Mass	61,973784 ± 0,000322 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys	1
nuclear quadrupole moment
atradimo data
parity	+

decay mode	Intensyvumas
p (proton emission)

⁶³As

mass number	63
neutron number	30
Relative Atomic Mass	62,964036 ± 0,000215 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys	3/2
nuclear quadrupole moment
atradimo data
parity	-

decay mode	Intensyvumas
p (proton emission)

⁶⁴As

mass number	64
neutron number	31
Relative Atomic Mass	63,95756 ± 0,000218 Da
g-factor	0
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	69 ± 1,4 ms
Sukinys	0
nuclear quadrupole moment	0
atradimo data	1995
parity	+

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁶⁵As

mass number	65
neutron number	32
Relative Atomic Mass	64,949611 ± 0,000091 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	130,3 ± 0,6 ms
Sukinys	3/2
nuclear quadrupole moment
atradimo data	1991
parity	-

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁶⁶As

mass number	66
neutron number	33
Relative Atomic Mass	65,944148778 ± 0,0000061 Da
g-factor	0
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	95,77 ± 0,23 ms
Sukinys	0
nuclear quadrupole moment	0
atradimo data	1978
parity	+

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁷As

mass number	67
neutron number	34
Relative Atomic Mass	66,93925111 ± 0,000000475 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	42,5 ± 1,2 s
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1980
parity	-

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁸As

mass number	68
neutron number	35
Relative Atomic Mass	67,936774127 ± 0,000001981 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	151,6 ± 0,8 s
Sukinys	3
nuclear quadrupole moment
atradimo data	1971
parity	+

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁹As

mass number	69
neutron number	36
Relative Atomic Mass	68,932246289 ± 0,000034352 Da
g-factor	0,6488 ± 0,0008
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	15,2 ± 0,2 m
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1955
parity	-

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁰As

mass number	70
neutron number	37
Relative Atomic Mass	69,930934642 ± 0,0000015 Da
g-factor	0,5276 ± 0,000125
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	52,6 ± 0,3 m
Sukinys	4
nuclear quadrupole moment	0,09 ± 0,02
atradimo data	1950
parity	+

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷¹As

mass number	71
neutron number	38
Relative Atomic Mass	70,927113594 ± 0,000004469 Da
g-factor	0,6692 ± 0,0008
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	65,3 ± 0,07 h
Sukinys	5/2
nuclear quadrupole moment	−0,021 ± 0,006
atradimo data	1939
parity	-

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷²As

mass number	72
neutron number	39
Relative Atomic Mass	71,926752291 ± 0,000004383 Da
g-factor	−1,0805 ± 0,0003
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	26 ± 0,1 h
Sukinys	2
nuclear quadrupole moment	−0,08 ± 0,02
atradimo data	1939
parity	-

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷³As

mass number	73
neutron number	40
Relative Atomic Mass	72,923829086 ± 0,000004136 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	80,3 ± 0,06 d
Sukinys	3/2
nuclear quadrupole moment
atradimo data	1948
parity	-

decay mode	Intensyvumas
ϵ (electron capture)	100%

⁷⁴As

mass number	74
neutron number	41
Relative Atomic Mass	73,923928596 ± 0,000001817 Da
g-factor	−0,798 ± 0,0015
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	17,77 ± 0,02 d
Sukinys	2
nuclear quadrupole moment
atradimo data	1938
parity	-

decay mode	Intensyvumas
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	66%
β⁻ (β⁻ decay)	34%

⁷⁵As

mass number	75
neutron number	42
Relative Atomic Mass	74,921594562 ± 0,000000948 Da
g-factor
natural abundance	100
Radioaktyvumas	stable isotope
pusėjimo trukmė	Not Radioactive ☢️
Sukinys	3/2
nuclear quadrupole moment	0,311 ± 0,002
atradimo data	1920
parity	-

⁷⁶As

mass number	76
neutron number	43
Relative Atomic Mass	75,922392011 ± 0,000000951 Da
g-factor	0,45115 ± 0,0005
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	1,0933 ± 0,0038 d
Sukinys	2
nuclear quadrupole moment
atradimo data	1934
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁷⁷As

mass number	77
neutron number	44
Relative Atomic Mass	76,920647555 ± 0,000001816 Da
g-factor	0,86266666666667 ± 0,00086666666666667
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	38,79 ± 0,05 h
Sukinys	3/2
nuclear quadrupole moment
atradimo data	1951
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁷⁸As

mass number	78
neutron number	45
Relative Atomic Mass	77,921827771 ± 0,000010498 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	90,7 ± 0,2 m
Sukinys	2
nuclear quadrupole moment
atradimo data	1937
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁷⁹As

mass number	79
neutron number	46
Relative Atomic Mass	78,920948419 ± 0,000005716 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	9,01 ± 0,15 m
Sukinys	3/2
nuclear quadrupole moment
atradimo data	1950
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁸⁰As

mass number	80
neutron number	47
Relative Atomic Mass	79,92247444 ± 0,000003578 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	15,2 ± 0,2 s
Sukinys	1
nuclear quadrupole moment
atradimo data	1954
parity	+

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁸¹As

mass number	81
neutron number	48
Relative Atomic Mass	80,922132288 ± 0,000002838 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	33,3 ± 0,8 s
Sukinys	3/2
nuclear quadrupole moment
atradimo data	1960
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁸²As

mass number	82
neutron number	49
Relative Atomic Mass	81,924738731 ± 0,000004003 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	19,1 ± 0,5 s
Sukinys	2
nuclear quadrupole moment
atradimo data	1968
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁸³As

mass number	83
neutron number	50
Relative Atomic Mass	82,9252069 ± 0,000003004 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	13,4 ± 0,4 s
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1968
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%

⁸⁴As

mass number	84
neutron number	51
Relative Atomic Mass	83,92930329 ± 0,000003403 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	3,16 ± 0,58 s
Sukinys	2
nuclear quadrupole moment
atradimo data	1968
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.28%

⁸⁵As

mass number	85
neutron number	52
Relative Atomic Mass	84,932163658 ± 0,000003304 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	2,022 ± 0,007 s
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1967
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	62.6%

⁸⁶As

mass number	86
neutron number	53
Relative Atomic Mass	85,936701532 ± 0,000003703 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	945 ± 8 ms
Sukinys	1
nuclear quadrupole moment
atradimo data	1973
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	35.5%
2n (2-neutron emission)

⁸⁷As

mass number	87
neutron number	54
Relative Atomic Mass	86,940291716 ± 0,000003204 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	492 ± 25 ms
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1970
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	15.4%
2n (2-neutron emission)

⁸⁸As

mass number	88
neutron number	55
Relative Atomic Mass	87,94584 ± 0,000215 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė	270 ± 150 ms
Sukinys
nuclear quadrupole moment
atradimo data	1994
parity

decay mode	Intensyvumas
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁸⁹As

mass number	89
neutron number	56
Relative Atomic Mass	88,950048 ± 0,000322 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1994
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹⁰As

mass number	90
neutron number	57
Relative Atomic Mass	89,955995 ± 0,000429 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys
nuclear quadrupole moment
atradimo data	1997
parity

decay mode	Intensyvumas
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹¹As

mass number	91
neutron number	58
Relative Atomic Mass	90,960816 ± 0,000429 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys	5/2
nuclear quadrupole moment
atradimo data	1997
parity	-

decay mode	Intensyvumas
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹²As

mass number	92
neutron number	59
Relative Atomic Mass	91,967386 ± 0,000537 Da
g-factor
natural abundance
Radioaktyvumas	☢️ radioactive element
pusėjimo trukmė
Sukinys
nuclear quadrupole moment
atradimo data	1997
parity

decay mode	Intensyvumas
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

istorija

atradėjas arba išradėjas	Known to the ancients.
location of discovery
atradimo data
Etimologija	Greek: arsenikon; Latin: arsenicum, (both names for yellow pigment).
pronunciation	AR-s'n-ik (anglų)

source

Abundance
Abundance in Earth's crust	1,8 mg/kg
natural abundance (Vandenynas)	0,0037 mg/L
natural abundance (Kūnas)	0,000005 %
natural abundance (Meteoroidas)	0,00018 %
natural abundance (Saulė)
Abundance in Universe	0,0000008 %

Nuclear Screening Constants

1	s	0.7217
2	p	3.9264
2	s	8.873
3	d	15.6216
3	p	15.1503
3	s	14.4045
4	p	25.5508
4	s	24.056

Arsenas on ChemicalAid

Australian Educational Vocabulary ID	scot/1661
BNCF Thesaurus ID	25597
Banglapedia ID (Bengali)	আর্সেনিক
Bibliothèque nationale de France ID	11971740q
Brockhaus Enzyklopädie online ID	arsen
CAB ID	43961
CA PROP 65 ID	arsenic
CAS Registry Number	7440-38-2
ChEBI ID	27563
ChemSpider ID	4514330
DSSTOX compound identifier	DTXCID703886
DSSTox substance ID	DTXSID4023886
De Agostini ID	arsènico+(sostantivo)
Den Store Danske ID	arsen
ECHA Substance Infocard ID	100.028.316
Encyclopedia of China ID (Second Edition)	229020
Encyclopædia Universalis ID	arsenic-toxicologie
Encyclopædia Universalis ID	arsenic
Encyclopédie berbère article ID	2598
Freebase kodas	/m/027rq1r
French Vikidia ID	Arsenic
GND ID	4003041-6
Gran Enciclopèdia Catalana ID	0005554
Great Russian Encyclopedia Online ID	2241159
Gujarati Vishwakosh entry	આર્સેનિક
HCIS ID	287
HSDB ID	509
ICSC ID	0013
InChI	InChI=1S/As
InChIKey	RQNWIZPPADIBDY-UHFFFAOYSA-N
KBpedia ID	Arsenic
KEGG ID	C06269
Krugosvet article	nauka_i_tehnika/himiya/MISHYAK.html
Krugosvet article	meditsina/myshyak-i-zdorove-cheloveka
Library of Congress authority ID	sh85007449
LiverTox ID	Arsenic
MeSH descriptor ID	D001151
NALT ID	12370
NDF-RT ID	N0000022206
NDL Authority ID	00563271
NE.se ID	arsenik
NKCR AUT ID	ph138910
National Library of Israel J9U ID	987007294803405171
National Library of Latvia ID	000306779
OmegaWiki Defined Meaning	255
OpenAlex ID	C502230775
OpenAlex ID	C2910930242
PACTOLS thesaurus ID	pcrt5mFxzmQ9rX
PM20 ware ID	142006
PSH ID	5803
PubChem CID	5359596
Quora topic ID	Arsenic-As
RxNorm ID	1111
Spanish Cultural Heritage thesauri ID	materias/1009757
Store medisinske leksikon ID	arsen
Store norske leksikon ID	arsen
Treccani ID	arsenico
U.S. National Archives Identifier	10637420
UK Archival Thesaurus ID	f2/mt225/4347/7620
UMLS CUI	C0003818
UNII	N712M78A8G
USGS Thesaurus ID	1396
WikiSkripta ID	32671
Wolfram Language entity code	Entity["Mineral", "Arsenic"]
WordNet 3.1 Synset ID	14653327-n
YSO ID	9329
ZVG number	8280

Arsenas (As)

Fizikinė Ypatybė

Chemical Property

other

Isotopes of Arsenic

60As

61As

62As

63As

64As

65As

66As

67As

68As

69As

70As

71As

72As

73As

74As

75As

76As

77As

78As

79As

80As

81As

82As

83As

84As

85As

86As

87As

88As

89As

90As

91As

92As

istorija

source

Nuclear Screening Constants

⁶⁰As

⁶¹As

⁶²As

⁶³As

⁶⁴As

⁶⁵As

⁶⁶As

⁶⁷As

⁶⁸As

⁶⁹As

⁷⁰As

⁷¹As

⁷²As

⁷³As

⁷⁴As

⁷⁵As

⁷⁶As

⁷⁷As

⁷⁸As

⁷⁹As

⁸⁰As

⁸¹As

⁸²As

⁸³As

⁸⁴As

⁸⁵As

⁸⁶As

⁸⁷As

⁸⁸As

⁸⁹As

⁹⁰As

⁹¹As

⁹²As