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Tin at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Tin
Symbol: Sn
Atomic Number: 50
Atomic Mass: 118.71 amu
Melting Point: 231.9 °C (505.05 K, 449.41998 °F)
Boiling Point: 2270.0 °C (2543.15 K, 4118.0 °F)
Number of Protons/Electrons: 50
Number of Neutrons: 69
Classification: Other Metals
Crystal Structure: Tetragonal
Density @ 293 K: 7.31 g/cm3
Color: white

Atomic Structure

[Bohr Model of Tin]  
Number of Energy Levels: 5

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 18
    Fifth Energy Level: 4


Isotope Half Life
Sn-113115.1 days
Sn-117m13.6 days
Sn-119m293.0 days
Sn-1211.12 days
Sn-121m55.0 years
Sn-123129.2 days
Sn-123m40.1 minutes
Sn-1259.63 days
Sn-125m9.5 minutes
Sn-126100000.0 years


Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: Latin
Symbol Origin: From the Latin word stannum (tin)
Uses: coating for steel cans
Obtained From: ore cassiterite

Related Links

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