Arsēns (As)

chemical element with symbol As and atomic number 33

Atomic Number	33
Atomic Weight	74.921595
Masas skaitlis	75

Group	15
Period	4
Block	p

protons	33 p⁺
neitrons	42 n⁰
elektrons	33 e^-

Animated Bora atoma struktūras modelis of As (Arsēns)

Fizikāla Īpašība

Atoma Rādiuss	115 pm 231 pm
molar volume	13,1 cm³/mol
Covalent Radius	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
blīvums	5,75 g/cm³ 5 220 kg/m³

Chemical Property

enerģija

proton affinity
Elektrontieksme	0,804 eV/particle
jonizācijas potenciāls	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

enthalpy of vaporization	32,4 kJ/mol
enthalpy of fusion
standard enthalpy of formation	302,5 kJ/mol
elektrons

electron shell	2, 8, 18, 5

vērtības elektrons	5 ⓘ

elektronu konfigurācija	[Ar] 3d¹⁰ 4s² 4p³ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p³

Oksidēšanas pakāpe	-3, -2, -1, 0, 1, 2, 3, 4, 5
elektronegativitāte	13,08 eV/particle 0.2068208 2.18
Electrophilicity Index	1,5610969532554257 eV/particle
fundamentālais agregātstāvoklis

agregātstāvoklis	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
trīskāršais punkts	1 090,15 K 3 700 kPa
appearance
krāsa	Silver #ff1493 #bd80e3 #bd80e3
appearance	metallic grey
Laušanas koeficients	1,001552
thermodynamic material property
Thermal Conductivity
Termiskā izplešanās
Molārā siltumietilpība	24,64 J/(mol K)
Specific Heat Capacity	0,329 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	3,3 MS/m
īpatnējā pretestība	0,0000003 Ω*m
Supravadītspēja
Magnētisms
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)
lattice constant	4,13 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
Cietība	1 440 MPa 3,5 MPa
tilpuma elastības modulis	22 GPa
shear modulus
Junga modulis	8 GPa
Poisson's ratio
skaņas ātrums
klasifikācija
Category	Metalloids, 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
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

Masas skaitlis	60
neutron number	27
Relative Atomic Mass	59,993945 ± 0,000429 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	5
nuclear quadrupole moment
atklāšanas datums
parity	+

decay mode	intensity
p (proton emission)

⁶¹As

Masas skaitlis	61
neutron number	28
Relative Atomic Mass	60,981535 ± 0,000322 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	3/2
nuclear quadrupole moment
atklāšanas datums
parity	-

decay mode	intensity
p (proton emission)

⁶²As

Masas skaitlis	62
neutron number	29
Relative Atomic Mass	61,973784 ± 0,000322 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	1
nuclear quadrupole moment
atklāšanas datums
parity	+

decay mode	intensity
p (proton emission)

⁶³As

Masas skaitlis	63
neutron number	30
Relative Atomic Mass	62,964036 ± 0,000215 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	3/2
nuclear quadrupole moment
atklāšanas datums
parity	-

decay mode	intensity
p (proton emission)

⁶⁴As

Masas skaitlis	64
neutron number	31
Relative Atomic Mass	63,95756 ± 0,000218 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	69 ± 1,4 ms
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1995
parity	+

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

⁶⁵As

Masas skaitlis	65
neutron number	32
Relative Atomic Mass	64,949611 ± 0,000091 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	130,3 ± 0,6 ms
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1991
parity	-

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

⁶⁶As

Masas skaitlis	66
neutron number	33
Relative Atomic Mass	65,944148778 ± 0,0000061 Da
g-factor	0
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	95,77 ± 0,23 ms
spins	0
nuclear quadrupole moment	0
atklāšanas datums	1978
parity	+

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

⁶⁷As

Masas skaitlis	67
neutron number	34
Relative Atomic Mass	66,93925111 ± 0,000000475 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	42,5 ± 1,2 s
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1980
parity	-

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

⁶⁸As

Masas skaitlis	68
neutron number	35
Relative Atomic Mass	67,936774127 ± 0,000001981 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	151,6 ± 0,8 s
spins	3
nuclear quadrupole moment
atklāšanas datums	1971
parity	+

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

⁶⁹As

Masas skaitlis	69
neutron number	36
Relative Atomic Mass	68,932246289 ± 0,000034352 Da
g-factor	0,6488 ± 0,0008
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	15,2 ± 0,2 m
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1955
parity	-

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

⁷⁰As

Masas skaitlis	70
neutron number	37
Relative Atomic Mass	69,930934642 ± 0,0000015 Da
g-factor	0,5276 ± 0,000125
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	52,6 ± 0,3 m
spins	4
nuclear quadrupole moment	0,09 ± 0,02
atklāšanas datums	1950
parity	+

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

⁷¹As

Masas skaitlis	71
neutron number	38
Relative Atomic Mass	70,927113594 ± 0,000004469 Da
g-factor	0,6692 ± 0,0008
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	65,3 ± 0,07 h
spins	5/2
nuclear quadrupole moment	-0,021 ± 0,006
atklāšanas datums	1939
parity	-

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

⁷²As

Masas skaitlis	72
neutron number	39
Relative Atomic Mass	71,926752291 ± 0,000004383 Da
g-factor	-1,0805 ± 0,0003
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	26 ± 0,1 h
spins	2
nuclear quadrupole moment	-0,08 ± 0,02
atklāšanas datums	1939
parity	-

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

⁷³As

Masas skaitlis	73
neutron number	40
Relative Atomic Mass	72,923829086 ± 0,000004136 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	80,3 ± 0,06 d
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1948
parity	-

decay mode	intensity
ϵ (electron capture)	100%

⁷⁴As

Masas skaitlis	74
neutron number	41
Relative Atomic Mass	73,923928596 ± 0,000001817 Da
g-factor	-0,798 ± 0,0015
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	17,77 ± 0,02 d
spins	2
nuclear quadrupole moment
atklāšanas datums	1938
parity	-

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

⁷⁵As

Masas skaitlis	75
neutron number	42
Relative Atomic Mass	74,921594562 ± 0,000000948 Da
g-factor
natural abundance	100
radioaktivitāte	stable isotope
Pussabrukšanas periods	Not Radioactive ☢️
spins	3/2
nuclear quadrupole moment	0,311 ± 0,002
atklāšanas datums	1920
parity	-

⁷⁶As

Masas skaitlis	76
neutron number	43
Relative Atomic Mass	75,922392011 ± 0,000000951 Da
g-factor	0,45115 ± 0,0005
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	1,0933 ± 0,0038 d
spins	2
nuclear quadrupole moment
atklāšanas datums	1934
parity	-

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

⁷⁷As

Masas skaitlis	77
neutron number	44
Relative Atomic Mass	76,920647555 ± 0,000001816 Da
g-factor	0,86266666666667 ± 0,00086666666666667
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	38,79 ± 0,05 h
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1951
parity	-

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

⁷⁸As

Masas skaitlis	78
neutron number	45
Relative Atomic Mass	77,921827771 ± 0,000010498 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	90,7 ± 0,2 m
spins	2
nuclear quadrupole moment
atklāšanas datums	1937
parity	-

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

⁷⁹As

Masas skaitlis	79
neutron number	46
Relative Atomic Mass	78,920948419 ± 0,000005716 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	9,01 ± 0,15 m
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1950
parity	-

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

⁸⁰As

Masas skaitlis	80
neutron number	47
Relative Atomic Mass	79,92247444 ± 0,000003578 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	15,2 ± 0,2 s
spins	1
nuclear quadrupole moment
atklāšanas datums	1954
parity	+

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

⁸¹As

Masas skaitlis	81
neutron number	48
Relative Atomic Mass	80,922132288 ± 0,000002838 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	33,3 ± 0,8 s
spins	3/2
nuclear quadrupole moment
atklāšanas datums	1960
parity	-

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

⁸²As

Masas skaitlis	82
neutron number	49
Relative Atomic Mass	81,924738731 ± 0,000004003 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	19,1 ± 0,5 s
spins	2
nuclear quadrupole moment
atklāšanas datums	1968
parity	-

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

⁸³As

Masas skaitlis	83
neutron number	50
Relative Atomic Mass	82,9252069 ± 0,000003004 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	13,4 ± 0,4 s
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1968
parity	-

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

⁸⁴As

Masas skaitlis	84
neutron number	51
Relative Atomic Mass	83,92930329 ± 0,000003403 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	3,16 ± 0,58 s
spins	2
nuclear quadrupole moment
atklāšanas datums	1968
parity	-

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

⁸⁵As

Masas skaitlis	85
neutron number	52
Relative Atomic Mass	84,932163658 ± 0,000003304 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	2,022 ± 0,007 s
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1967
parity	-

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

⁸⁶As

Masas skaitlis	86
neutron number	53
Relative Atomic Mass	85,936701532 ± 0,000003703 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	945 ± 8 ms
spins	1
nuclear quadrupole moment
atklāšanas datums	1973
parity	-

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

⁸⁷As

Masas skaitlis	87
neutron number	54
Relative Atomic Mass	86,940291716 ± 0,000003204 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	492 ± 25 ms
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1970
parity	-

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

⁸⁸As

Masas skaitlis	88
neutron number	55
Relative Atomic Mass	87,94584 ± 0,000215 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods	270 ± 150 ms
spins
nuclear quadrupole moment
atklāšanas datums	1994
parity

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

⁸⁹As

Masas skaitlis	89
neutron number	56
Relative Atomic Mass	88,950048 ± 0,000322 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1994
parity	-

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

⁹⁰As

Masas skaitlis	90
neutron number	57
Relative Atomic Mass	89,955995 ± 0,000429 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins
nuclear quadrupole moment
atklāšanas datums	1997
parity

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

⁹¹As

Masas skaitlis	91
neutron number	58
Relative Atomic Mass	90,960816 ± 0,000429 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins	5/2
nuclear quadrupole moment
atklāšanas datums	1997
parity	-

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

⁹²As

Masas skaitlis	92
neutron number	59
Relative Atomic Mass	91,967386 ± 0,000537 Da
g-factor
natural abundance
radioaktivitāte	☢️ radioactive element
Pussabrukšanas periods
spins
nuclear quadrupole moment
atklāšanas datums	1997
parity

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

vēsture

atklājējs vai izgudrotājs	Known to the ancients.
atraduma atrašanās vieta
atklāšanas datums
Etimoloģija	Greek: arsenikon; Latin: arsenicum, (both names for yellow pigment).
izruna	AR-s'n-ik (angļu)

avots

Abundance
Abundance in Earth's crust	1,8 mg/kg
natural abundance (okeāns)	0,0037 mg/L
natural abundance (cilvēka ķermenis)	0,000005 %
natural abundance (meteoroīds)	0,00018 %
natural abundance (Saule)
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

Arsēns on ChemicalAid

Austrālijas Izglītības vārdnīcas identifikators	scot/1661
BNCF	25597
BNF kods	11971740q
Banglapedia ID (Bengali)	আর্সেনিক
Brockhaus Enzyklopädie online ID	arsen
CAB ID	43961
CA PROP 65 ID	arsenic
CAS reģistrācijas numurs	7440-38-2
ChEBI ID	27563
ChemSpider ID	4514330
DSSTOX compound identifier	DTXCID703886
DSSTox identifikators	DTXSID4023886
De Agostini ID	arsènico+(sostantivo)
Den Store Danske ID	arsen
ECHA Substance Infocard ID	100.028.316
Enciklopēdijas "Krugosvet" raksts	nauka_i_tehnika/himiya/MISHYAK.html
Enciklopēdijas "Krugosvet" raksts	meditsina/myshyak-i-zdorove-cheloveka
Encyclopedia of China ID (Second Edition)	229020
Encyclopædia Universalis ID	arsenic-toxicologie
Encyclopædia Universalis ID	arsenic
Encyclopédie berbère article ID	2598
Freebase identifikators	/m/027rq1r
French Vikidia ID	Arsenic
GND identifikators	4003041-6
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
Katalāņu Lielās enciklopēdijas kods	0005554
Krievijas Lielās enciklopēdijas tiešsaistes kods	2241159
LCCN identifikators	sh85007449
LNB identifikators	000306779
LiverTox ID	Arsenic
MeSH ID	D001151
NALT ID	12370
NDF-RT ID	N0000022206
NDL identifikators	00563271
NE.se ID	arsenik
NKC identifikators	ph138910
National Library of Israel J9U ID	987007294803405171
OmegaWiki definētā nozīme	255
OpenAlex ID	C502230775
OpenAlex ID	C2910930242
PACTOLS thesaurus ID	pcrt5mFxzmQ9rX
PM20 ware ID	142006
PSH ID	5803
PubChem ID (CID)	5359596
Quora temata 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

Arsēns (As)

Fizikāla Īpašība

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

vēsture

avots

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