Short,+Brianna



Copper, Cu

[|Group] 11

Period 4

Block d

Boiling point 2562 degrees

[|Melting point] 1084.62 degrees

Density 8933

Number of Protons 29

Number of Neutrons 34

Number of electrons 29

Atomic Mass 63.55

Atomic number 29

[|Orbital nation]  2.8.18 Electron Configuration Cooper has been used by humans for many as ten thousand years. Small amounts of native copper can be found. There were enough for them to being using it. Pure copper is to weak and solf for most uses. People learned about 5,000 years ago that copper can be strengthened if it is mixed with other metals. Relatively easy to mine and refine, people discovered methods for extracting copper from its ores at least 7,000 year ago.

Chemical properties Copper metal is stable in air under normal conditions. at read heat copper metal and oxygen react to form Cu2O

Unusula facts- from the Latin word cupru. Which means " from the island of Physical Properties molar volume
 * < [|Copper] ||< 7.124×10-6 ||<  ||<   ||<   ||<   ||