Arsen (As)

chemical element with symbol As and atomic number 33

Atomski broj	33
Relativna atomska masa	74.921595
Maseni broj	75

Skupina	15
Perioda	4
Blok	p

proton	33 p⁺
neutron	42 n⁰
elektron	33 e^-

Animated Bohrov model atoma of As (Arsen)

Physical Property

Atomski Radijus	115 pm 231 pm
Molni volumen	13,1 cm³/mol
Kovalentni Radijus	121 pm 114 pm 106 pm 126 pm 119 pm
Metallic Radius	121 pm 148 pm
Ionski radijus	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
gustoća	5,75 g/cm³ 5.220 kg/m³

Kemijsko Svojstvo

energija

proton affinity
Elektronski afinitet	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

Toplina isparivanja	32,4 kJ/mol
toplina taljenja
standard enthalpy of formation	302,5 kJ/mol
elektron

Elektronska ljuska	2, 8, 18, 5

valence electron	5 ⓘ

electron configuration	[Ar] 3d¹⁰ 4s² 4p³ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p³

Oksidacijski broj	-3, -2, -1, 0, 1, 2, 3, 4, 5
Elektronegativnost	13,08 eV/particle 0.2068208 2.18
Electrophilicity Index	1,5610969532554257 eV/particle
fundamental state of matter

agregatno stanje	Čvrsto
gaseous state of matter
Vrelište	889,15 K
Talište	1.090,15 K
critical pressure	22,3 MPa
critical temperature	1.673,15 K
Trojna točka	1.090,15 K 3.700 kPa
appearance
boja	Srebrna #ff1493 #bd80e3 #bd80e3
appearance	metallic grey
Indeks prelamanja	1,001552
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
molar heat capacity	24,64 J/(mol K)
Specifični toplinski kapacitet	0,329 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	3,3 MS/m
Električna otpornost i provodnost	0,0000003 m Ω
Supravodljivost
Magnetizam
type	diamagnetic
Magnetna susceptibilnost (Mass)	−0,0000000039 m³/Kg
Magnetna susceptibilnost (Molar)	−0,000000000292 m³/mol
Magnetna susceptibilnost (Volume)	−0,0000223
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna struktura	Jednostavna Trigonska (RHL)
lattice constant	4,13 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
Tvrdoća	1.440 MPa 3,5 MPa
bulk modulus	22 GPa
shear modulus
Youngov modul elastičnosti	8 GPa
Poissonov omjer
brzina zvuka
classification
Kategorija	Polumetali, Metalloids
CAS Group	VB
IUPAC Group	VA
Glawe Number	90
Mendeleev Number	95
Pettifor Number	89
Geochemical Class	semi-volatile
Goldschmidt classification	chalcophile

other

Gas Basicity
polarizability	30 ± 1 a₀
C6 Dispersion Coefficient	246 a₀ 260 a₀
allotrope	Yellow Arsenic, Black Arsenic, Gray Arsenic
Nuklearni udarni presjek	4,2
Neutron Mass Absorption	0,002
Kvantni brojevi	4S3/2
space group	166 (R_3m)

Isotopes of Arsenic

Stabilni izotopi	1
Nestabilni izotopi	32
Natural Isotopes	1

⁶⁰As

Maseni broj	60
neutron number	27
Relativna atomska masa	59,993945 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	5
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	+

decay mode	intensity
p (proton emission)

⁶¹As

Maseni broj	61
neutron number	28
Relativna atomska masa	60,981535 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	-

decay mode	intensity
p (proton emission)

⁶²As

Maseni broj	62
neutron number	29
Relativna atomska masa	61,973784 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	1
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	+

decay mode	intensity
p (proton emission)

⁶³As

Maseni broj	63
neutron number	30
Relativna atomska masa	62,964036 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	-

decay mode	intensity
p (proton emission)

⁶⁴As

Maseni broj	64
neutron number	31
Relativna atomska masa	63,95756 ± 0,000218 Da
g-factor	0
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	69 ± 1,4 ms
spin	0
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1995
Parnost	+

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

⁶⁵As

Maseni broj	65
neutron number	32
Relativna atomska masa	64,949611 ± 0,000091 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	130,3 ± 0,6 ms
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1991
Parnost	-

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

⁶⁶As

Maseni broj	66
neutron number	33
Relativna atomska masa	65,944148778 ± 0,0000061 Da
g-factor	0
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	95,77 ± 0,23 ms
spin	0
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1978
Parnost	+

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

⁶⁷As

Maseni broj	67
neutron number	34
Relativna atomska masa	66,93925111 ± 0,000000475 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	42,5 ± 1,2 s
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1980
Parnost	-

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

⁶⁸As

Maseni broj	68
neutron number	35
Relativna atomska masa	67,936774127 ± 0,000001981 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	151,6 ± 0,8 s
spin	3
nuclear quadrupole moment
vrijeme otkrića ili izuma	1971
Parnost	+

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

⁶⁹As

Maseni broj	69
neutron number	36
Relativna atomska masa	68,932246289 ± 0,000034352 Da
g-factor	0,6488 ± 0,0008
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	15,2 ± 0,2 m
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1955
Parnost	-

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

⁷⁰As

Maseni broj	70
neutron number	37
Relativna atomska masa	69,930934642 ± 0,0000015 Da
g-factor	0,5276 ± 0,000125
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	52,6 ± 0,3 m
spin	4
nuclear quadrupole moment	0,09 ± 0,02
vrijeme otkrića ili izuma	1950
Parnost	+

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

⁷¹As

Maseni broj	71
neutron number	38
Relativna atomska masa	70,927113594 ± 0,000004469 Da
g-factor	0,6692 ± 0,0008
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	65,3 ± 0,07 h
spin	5/2
nuclear quadrupole moment	−0,021 ± 0,006
vrijeme otkrića ili izuma	1939
Parnost	-

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

⁷²As

Maseni broj	72
neutron number	39
Relativna atomska masa	71,926752291 ± 0,000004383 Da
g-factor	−1,0805 ± 0,0003
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	26 ± 0,1 h
spin	2
nuclear quadrupole moment	−0,08 ± 0,02
vrijeme otkrića ili izuma	1939
Parnost	-

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

⁷³As

Maseni broj	73
neutron number	40
Relativna atomska masa	72,923829086 ± 0,000004136 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	80,3 ± 0,06 d
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1948
Parnost	-

decay mode	intensity
ϵ (electron capture)	100%

⁷⁴As

Maseni broj	74
neutron number	41
Relativna atomska masa	73,923928596 ± 0,000001817 Da
g-factor	−0,798 ± 0,0015
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	17,77 ± 0,02 d
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1938
Parnost	-

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

⁷⁵As

Maseni broj	75
neutron number	42
Relativna atomska masa	74,921594562 ± 0,000000948 Da
g-factor
natural abundance	100
radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	3/2
nuclear quadrupole moment	0,311 ± 0,002
vrijeme otkrića ili izuma	1920
Parnost	-

⁷⁶As

Maseni broj	76
neutron number	43
Relativna atomska masa	75,922392011 ± 0,000000951 Da
g-factor	0,45115 ± 0,0005
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,0933 ± 0,0038 d
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1934
Parnost	-

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

⁷⁷As

Maseni broj	77
neutron number	44
Relativna atomska masa	76,920647555 ± 0,000001816 Da
g-factor	0,86266666666667 ± 0,00086666666666667
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	38,79 ± 0,05 h
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1951
Parnost	-

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

⁷⁸As

Maseni broj	78
neutron number	45
Relativna atomska masa	77,921827771 ± 0,000010498 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	90,7 ± 0,2 m
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1937
Parnost	-

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

⁷⁹As

Maseni broj	79
neutron number	46
Relativna atomska masa	78,920948419 ± 0,000005716 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	9,01 ± 0,15 m
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1950
Parnost	-

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

⁸⁰As

Maseni broj	80
neutron number	47
Relativna atomska masa	79,92247444 ± 0,000003578 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	15,2 ± 0,2 s
spin	1
nuclear quadrupole moment
vrijeme otkrića ili izuma	1954
Parnost	+

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

⁸¹As

Maseni broj	81
neutron number	48
Relativna atomska masa	80,922132288 ± 0,000002838 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	33,3 ± 0,8 s
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1960
Parnost	-

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

⁸²As

Maseni broj	82
neutron number	49
Relativna atomska masa	81,924738731 ± 0,000004003 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	19,1 ± 0,5 s
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1968
Parnost	-

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

⁸³As

Maseni broj	83
neutron number	50
Relativna atomska masa	82,9252069 ± 0,000003004 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	13,4 ± 0,4 s
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1968
Parnost	-

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

⁸⁴As

Maseni broj	84
neutron number	51
Relativna atomska masa	83,92930329 ± 0,000003403 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	3,16 ± 0,58 s
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1968
Parnost	-

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

⁸⁵As

Maseni broj	85
neutron number	52
Relativna atomska masa	84,932163658 ± 0,000003304 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,022 ± 0,007 s
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1967
Parnost	-

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

⁸⁶As

Maseni broj	86
neutron number	53
Relativna atomska masa	85,936701532 ± 0,000003703 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	945 ± 8 ms
spin	1
nuclear quadrupole moment
vrijeme otkrića ili izuma	1973
Parnost	-

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

⁸⁷As

Maseni broj	87
neutron number	54
Relativna atomska masa	86,940291716 ± 0,000003204 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	492 ± 25 ms
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1970
Parnost	-

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

⁸⁸As

Maseni broj	88
neutron number	55
Relativna atomska masa	87,94584 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	270 ± 150 ms
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	1994
Parnost

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

⁸⁹As

Maseni broj	89
neutron number	56
Relativna atomska masa	88,950048 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1994
Parnost	-

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

⁹⁰As

Maseni broj	90
neutron number	57
Relativna atomska masa	89,955995 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	1997
Parnost

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

⁹¹As

Maseni broj	91
neutron number	58
Relativna atomska masa	90,960816 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1997
Parnost	-

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

⁹²As

Maseni broj	92
neutron number	59
Relativna atomska masa	91,967386 ± 0,000537 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	1997
Parnost

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

povijest

otkrio/izumio	Known to the ancients.
location of discovery
vrijeme otkrića ili izuma
Etimologija	Greek: arsenikon; Latin: arsenicum, (both names for yellow pigment).
pronunciation	AR-s'n-ik (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori	1,8 mg/kg
natural abundance (ocean)	0,0037 mg/L
natural abundance (tijelo)	0,000005 %
natural abundance (meteoroid)	0,00018 %
natural abundance (Sunce)
Zastupljenost u svemiru	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

Arsen on ChemicalAid

Australian Educational Vocabulary ID	scot/1661
BNCF Thesaurus ID	25597
BNF	11971740q
Banglapedia ID (Bengali)	আর্সেনিক
Brockhaus Enzyklopädie online ID	arsen
CAB ID	43961
CA PROP 65 ID	arsenic
CAS registarski broj	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 ID	/m/027rq1r
French Vikidia ID	Arsenic
GND identifikator	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
ID oznaka teme na Quori	Arsenic-As
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
LCCN	sh85007449
LiverTox ID	Arsenic
MeSH ID	D001151
NALT ID	12370
NDF-RT ID	N0000022206
NDL ID	00563271
NE.se ID	arsenik
NKCR broj	ph138910
National Library of Israel J9U ID	987007294803405171
National Library of Latvia ID	000306779
OpenAlex ID	C502230775
OpenAlex ID	C2910930242
PACTOLS thesaurus ID	pcrt5mFxzmQ9rX
PM20 ware ID	142006
PSH ID	5803
PubChem ID	5359596
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
značenje prema OmegaWiki	255

Arsen (As)

Physical Property

Kemijsko Svojstvo

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

povijest

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