Shoup,+Rachel

=Zinc =

Symbol-Zn

Boiling point-1180 (907 degrees C or 1665 degrees F) K

Melting point-692.68 (419.53 degrees C or 787.15 degrees F) K

Specific gravity/density-7140 kg

Protons-30

Neutrons-35

Electrons-30

Atomic mass-65.38

Atomic number-30

Electron configuration-3d10.4s2

Orbital notation-1s2_2s2_2p6_3s2_3p6_3d10_4s2

Valence electrons-2

Discovery-Andreas Margraff discovered it in 1746 in Germany. He heated calamine in coal and the product was Zinc.

Production-Zinc is not produced as a single element but there are a number of important ores such as sphalerite.The removal involves roasting the ores to form oxide and reducing it with carbon and coal.

Chemical properties- Zinc reacts with air, halogens,acids,and bases

<span style="font-family: Georgia,serif;">Physical properties-Transition metal,bluish pale gray, it is a fair conductor of electricity, and brittle at normal temperatures. <span style="font-family: Georgia,serif;">Ores found in-Sphalerite,smithsonite,zincspar, and marmatite

<span style="font-family: Georgia,serif;">Chemical reactions-Zinc reacts with air and burns creating white zinc (II) oxide. Zinc also reacts with halogens to form zinc dibromide and zinc diiodide.

<span style="font-family: Georgia,serif;">Uses-Dry batteries, roof cladding,galvanize metals, and small weight coins

<span style="font-family: Georgia,serif;">Cost/value-$5.30 per 100 g

<span style="font-family: Georgia,serif;">Bohr model-

<span style="font-family: Georgia,serif;">

<span style="font-family: Georgia,serif;">Pure state- <span style="font-family: Georgia,serif;">

<span style="font-family: Georgia,serif;">Unusual facts-Its ores have been used to make brass,and it comes from the German word "zink". Also, 87 % of it has been found in prehistoric ruins in Transylvania.

__Citations-__

[] Author-Mark Winter Last update-2012
 * Web elements**

[] Author-<span style="background-color: rgba(255,255,255,0);">Thomas Jefferson National Accelerator Facility - Office of Science Education Last update-Unknown
 * Periodic Table-Jefferson Labs**

http://periodic.lanl.gov/index.shtml Author-Los Alamos national laboratory Last update-2014
 * Periodic Table of Elements**