Periodic Table of the Elements
Periodic Table




Previous element Next element

name Arsenic
latin Arsenicum
french Arsenic
german Arsen
symbol As
proton number 33
atomic weight 74.9216
Pauling electronegativity 2.18
electronic configuration [Ar] 3d104s24p3
>> show long
melting point 1090 K, 817°C, 1502°F
boiling point 887 K, 614°C, 1137°F
group 15
period 4
state (by 20°C) solid
oxidation states -3, +3, +5
printable version
printable version

discussion board
discussion board


Year of discovery Discoverer
1250 Albertus Magnus (1200-1280)

>> show more

Copyright © 1998-2023 Jan Straka
All rights reserved. Czech version Czech version