Periodic System for Chemists

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Table
29
63.55

Cu

Copper

Identification

CAS Number: 7440-50-8
Discoverer: Known to the ancients.

Properties

Atomic Mass: 63.546 →Density: 8.96 g/cm³ →
Crust Abundance: 60 mg/kg
Crystal Structure: FCC

Atomic Dimensions

Atomic Radius: 135 pm →
Atomic Radius (Rahm): 217 pm
Covalent Radius: 132 pm →
Van der Waals Radius: 196 pm
Metallic Radius: 118 pm
Atomic Volume: 7.1 cm³/mol
Lattice Constant: 3.61 Å

Thermodynamics

Melting Point: 1356.6 K →Boiling Point: 2840 K →Specific Heat: 0.385 J/(g·K) →Thermal Conductivity: 401 W/(m·K) →Heat of Fusion: 13.01 kJ/mol →Heat of Vaporization: 304.6 kJ/mol →
Heat of Formation: 337.4 kJ/mol

Electronic Structure

Electron Config: [Ar] 3d10 4s
Block: d
Period: 4 →Group: 11 →Electronegativity: 1.9 →Electron Affinity: 1.235 eV →
Oxidation States: +1, +2

Abundance & Geochemistry

Crust Abundance: 60 mg/kg
Sea Abundance: 0.00025 mg/L
Geochemical Class: first series transition metal
Goldschmidt Class: chalcophile

About

Copper is a reddish-orange metal with excellent electrical and thermal conductivity. It has been used by humans for over 10,000 years.

Isotopes

Cu-63 63 69.15%
Cu-65 65 30.85%

Related Elements

Category

Transition Metals

Same Group

47 Ag Silver79 Au Gold111 Rg Roentgenium

Same Period

26 Fe Iron27 Co Cobalt28 Ni Nickel30 Zn Zinc31 Ga Gallium32 Ge Germanium

Periodic Trends

Electronegativity →Atomic Radius →Density →Melting Point →

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