Arseen
33
As
Groep
15
Periode
4
Blok
p
Protonen
Elektronen
Neutronen
33
33
42
Algemene Eigenschappen
Atoomnummer
33
Atomair gewicht
74,9216
Massa Getal
75
Categorie
Metalloïden
Kleur
Zilver
Radioactief
Nee
Van het Latijnse woord arsenicum, Grieks arsenikon
Kristalstructuur
Eenvoudige Trigonaal
Historie
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.
Eletronen per schil
2, 8, 18, 5
Electronconfiguratie
[Ar] 3d10 4s2 4p3
Prawns are known to contain quite high levels of arsenic
Fysieke Eigenschappen
Fase
Vast
Dichtheid
5,776 g/cm3
Smeltpunt
1090,15 K | 817 °C | 1502,6 °F
Kookpunt
876,15 K | 603 °C | 1117,4 °F
Fusiewarmte
27,7 kJ/mol
Verdampingswarmte
32,4 kJ/mol
Specifieke Warmtecapaciteit
0,329 J/g·K
Overvloedig aanwezig in de aardkorst
0,00021%
Overvloedig aanwezig in het universum
8×10-7%
CAS-nummer
7440-38-2
PubChem CID nummer
5359596
Atoomeigenschappen
Atoomstraal
119 pm
Covalentiestraal
119 pm
Electronegativiteit
2,18 (Pauling schaal)
Ionisatiepotentiaal
9,7886 eV
Atoomvolume
12,97 cm3/mol
Thermische geleiding
0,502 W/cm·K
Oxidatietoestanden
-3, 2, 3, 5
Toepassingen
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
Isotopen
Stabiele isotopen
75AsInstabiele isotopen
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