Arseeni
33
As
Ryhmä
15
Jakso
4
Lohko
p
Protonia
Elektronit
Neutronia
33
33
42
Yleiset ominaisuudet
Järjestysluku
33
Atomipaino
74,9216
Massaluku
75
Luokka
Puolimetallit
Väri
Hopea
Radioaktiivisuus
Ei
From the Latin word arsenicum, Greek arsenikon
Kiderakenne
Yksinkertainen trigoninen
Historia
Greek historian Olympiodorus of Thebes roasted arsenic sulfide and obtained white arsenic during 5th century AD.
Albertus Magnus is believed to have been the first to isolate the element from a compound in 1250, by heating soap together with arsenic trisulfide.
In 1649, Johann Schröder published two ways of preparing arsenic.
Albertus Magnus is believed to have been the first to isolate the element from a compound in 1250, by heating soap together with arsenic trisulfide.
In 1649, Johann Schröder published two ways of preparing arsenic.
Elektroneja elektronikuorilla
2, 8, 18, 5
Orbitaalirakenne
[Ar] 3d10 4s2 4p3
Prawns are known to contain quite high levels of arsenic
Fyysiset ominaisuudet
Olomuoto
Kiinteä
Tiheys
5,776 g/cm3
Sulamispiste
1090,15 K | 817 °C | 1502,6 °F
Kiehumispiste
876,15 K | 603 °C | 1117,4 °F
Sulamislämpö
27,7 kJ/mol
Höyrystymislämpö
32,4 kJ/mol
Ominaislämpökapasiteetti
0,329 J/g·K
Esiintyvyys maankuoressa
0,00021%
Esiintyvyys maailmankaikkeudessa
8×10-7%
CAS-numero
7440-38-2
PubChem CID-numero
5359596
Atomiominaisuudet
Atomisäde
119 pm
Kovalenttisäde
119 pm
Elektronegatiivisuus
2,18 (Paulingin asteikko)
Ionisoitumispotentiaali
9,7886 eV
Moolitilavuus
12,97 cm3/mol
Lämmönjohtavuus
0,502 W/cm·K
Hapetusluvut
-3, 2, 3, 5
Käyttö
The toxicity of arsenic to insects, bacteria and fungi led to its use as a wood preservative and as insecticides.
Arsenic is used in bronzing, pyrotechny, and for hardening and improving the sphericity of shot.
Gallium arsenide is a semiconductor used in laser diodes and LEDs.
Small amounts of arsenic can be used in lead alloys for ammunition.
Arsenic is used in bronzing, pyrotechny, and for hardening and improving the sphericity of shot.
Gallium arsenide is a semiconductor used in laser diodes and LEDs.
Small amounts of arsenic can be used in lead alloys for ammunition.
Arsenic and its compounds are poisonous
Isotooppi
Vakaat isotoopit
75AsEpävakaat isotoopit
60As, 61As, 62As, 63As, 64As, 65As, 66As, 67As, 68As, 69As, 70As, 71As, 72As, 73As, 74As, 76As, 77As, 78As, 79As, 80As, 81As, 82As, 83As, 84As, 85As, 86As, 87As, 88As, 89As, 90As, 91As, 92As