Hernandez,+Gabriela

Arsenic __Name__: Arsenic __Symbol__: As



__Atomic number__: 33 __Protons__: 33 __Electrons__: 33 __Neutrons__: 41.92 __Atomic mass__: 74.92 __Number of valence electrons__: 5 __Melting point__: 817 °C (1503 °F) __Boiling point__: 614 °C (1137 °F) __Density__: 5.37 []

__[|Arsenic]__ __orbital notation/Electron Configuration__: 4s2 3d10 4p3 <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__How discovered__: Albert Magnus who obtained it by heating soap together with orpiment <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__When discovered__: 1250 AD <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__Where and how produced and processed__: produced in the environment naturally, rock and other minerals contain it inside of them. <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__Chemical properties__: above 270 <span style="color: #c50b75; font-family: 'Helvetica','sans-serif';">° is metallic <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__Physical properties__:is soft and brittle. Arsenic is a firm rock found in weathered material. It is metallic on the outside <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__Minerals compounds in which found__: crustal rock, as well as ores <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__2 common reactions__:

* <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">Arsenic reacts with the halogen group.

* <span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">As well as the halogens arsenic reacts with many of the common acids

<span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">__Industrial or commercial use__: preservation of wood in industrial uses in commercial use,

<span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">Cost/value: $320.00 100g

<span style="color: #c50b75; font-family: 'Times New Roman','serif'; font-size: 19px;">[|arsenic] //About Chemistry//. About.com, 2013. Web. 1 Mar. 2013. []. //Arsenic//. Mark Winter, 1993. Web. 1 Mar. 2013. [] //Chemichool//. Chemichool, 2013. Web. 1 Mar. 2013. []