![[ATOM]](atom.gif) |
Zinc
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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]](b0030.gif) |
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Number of Energy Levels: 4
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 2
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Isotopes
| 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 |
Facts
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