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Information valid for Cu-64 unless otherwise noted

Basic Information

Symbol: Cu
Atomic Number: 29
Mass: 63.546
Melting Point: 1083.0 C
Boiling Point: 2567.0 C
Number of Protons/Electrons: 29
Number of Neutrons: 35
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 8.96 g/cm3
Color: red/orange

Atomic Structure

[Bohr Model of Copper]
Number of Energy Levels: 4

  1. First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 1


Isotope Half Life
Cu-61 3.4 hours
Cu-62 9.7 minutes
Cu-63 Stable
Cu-64 12.7 hours
Cu-65 Stable
Cu-67 2.6 days


Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: From the Latin word cyprium, after the island of Cyprus
Uses: electrical conductor, jewelry, coins, plumbing
Obtained From: chalcopyrite, coveline, chalcosine

Related Links

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  1. The Copper Page