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Information valid for Zn-65 unless otherwise noted

Basic Information

Symbol: Zn
Atomic Number: 30
Mass: 65.39
Melting Point: 419.58 C
Boiling Point: 907.0 C
Number of Protons/Electrons: 30
Number of Neutrons: 35
Classification: Transition Metal
Crystal Structure: Hexagonal
Density @ 293 K: 7.133 g/cm3
Color: bluish

Atomic Structure

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

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


Isotope Half Life
Zn-62 9.26 hours
Zn-63 38.5 minutes
Zn-64 Stable
Zn-65 243.8 days
Zn-66 Stable
Zn-67 Stable
Zn-68 Stable
Zn-69m 13.76 hours
Zn-70 Stable
Zn-72 46.5 hours


Date of Discovery: 1746
Discoverer: Andreas Marggraf
Name Origin: From the German word zin (meaning tin)
Uses: metal coating, rust protection, brass, bronze, nickel
Obtained From: zinc blende, calamine