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Element Details

Element Description

Zinc is a bluish-white, lustrous metal with fair electrical conductivity. Zinc ores were used for making brass in ancient times, but metallic zinc was not produced until the 13th century. Five hundred years later, the element was rediscovered in Europe. It is brittle at room temperature, but malleable at 100 to 150°C. Zinc is used predominantly as an alloy with other metals.

Property Name Property Value Property Name Property Value
Atomic Code (30Zn65.38) Heat of Vaporization 27.43cal/g
CAS # 7440-66-6 Atomic Volume 9.2W/D
First Ionization Energy 216K-cal/g-mole
Melting Point 419.5°C Electronegativity 1.6Pauling's
Boiling Point 907°C Covalent Radius 1.25Angstroms
Density @ 25°C 7.14g/cm3 Mohs Hardness @ 20°C 2.5
Themal Conductivity 0.27cal/cm2/cm/s/°C Linear Coefficient of Expansion 30.2x10-6K-1
Specific Heat @ 25°C 0.0915cal/g°C Electrical Resistivity @ 20°C 5.92µΩ-cm
Heat of Fusion 1.76k-cal/g-atom Crystal Structure Hexagonal


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