![[ATOM]](atom.gif) |
Tin
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Information valid for Sn-119 unless otherwise noted
Basic Information
Symbol: Sn
Atomic Number: 50
Mass: 118.71
Melting Point: 231.9 C
Boiling Point: 2270.0 C
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]](b0050.gif) |
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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
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Isotopes
| Isotope |
Half Life |
| Sn-112 |
Stable |
| Sn-113 |
115.1 days |
| Sn-114 |
Stable |
| Sn-115 |
Stable |
| Sn-116 |
Stable |
| Sn-117 |
Stable |
| Sn-117m |
13.6 days |
| Sn-118 |
Stable |
| Sn-119 |
Stable |
| Sn-119m |
293.0 days |
| Sn-120 |
Stable |
| Sn-121 |
1.12 days |
| Sn-121m |
55.0 years |
| Sn-122 |
Stable |
| Sn-123 |
129.2 days |
| Sn-123m |
40.1 minutes |
| Sn-124 |
Stable |
| Sn-125 |
9.63 days |
| Sn-125m |
9.5 minutes |
| Sn-126 |
100000.0 years |
Facts
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