![]() Discoverer: Known to ancient civilization.70kg human: 72 mg Who / Where / When / How Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances. Target Organs: Eyes, skin, respiratory system, liver, kidneys (increase(d) risk with Wilson's disease).Routes of Exposure: Inhalation Ingestion Skin and/or eye contact.Vapor Pressure = C Regulatory / Health.Flammablity Class: Non-combustible solid (except as dust).Enthalpy of Vaporization: 304.6 kJ/mole.Enthalpy of Atomization: 338.9 kJ/mole 25☌.Description: Reddish orange transition metal. ![]() Conductivity Electrical: 0.596 10 6/cm Ω.Coefficient of lineal thermal expansion/K -1: 16.5E -6.Valence Electron Potential (-eV): 34 Physical Properties of Copper.Incompatibilities: Oxidizers, alkalis, sodium azide, acetylene.Electronegativity: 1.9 (Pauling) 1.75 (Allrod Rochow).Electrochemical Equivalent: 1.1855g/amp-hr.Valence Electrons: 3d 10 4s 1 Chemical Properties of Copper.Number of Neutrons (most common/stable nuclide): 35.Number of Electrons (with no charge): 29.Electrons per Energy Level: 2,8,18,1 Shell Model.Electron Configuration: 1s 2 2s 2p 6 3s 2p 6d 10 4s 1.Crystal Structure: Cubic face centered.Cross Section (Thermal Neutron Capture)σ a/ barns : 3.78.Swedish: Koppar Atomic Structure of Copper. ![]()
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