![[ATOM]](atom.gif) |
Americium
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Information valid for Am-243 unless otherwise noted
Basic Information
Symbol: Am
Atomic Number: 95
Mass: (243.0)
Melting Point: 994.0 C
Boiling Point: 2607.0 C
Number of Protons/Electrons: 95
Number of Neutrons: 148
Classification: Rare Earth
Crystal Structure: Hexagonal
Density @ 293 K: 13.6 g/cm3
Color: Unknown
Atomic Structure
![[Bohr Model of Americium]](b0095.gif) |
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Number of Energy Levels: 7
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 32
Fifth Energy Level: 25
Sixth Energy Level: 8
Seventh Energy Level: 2
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Isotopes
| Isotope |
Half Life |
| Am-240 |
2.1 days |
| Am-241 |
432.7 years |
| Am-242 |
16.0 hours |
| Am-242m |
141.0 years |
| Am-243 |
7370.0 years |
| Am-244 |
10.1 hours |
| Am-245 |
2.1 hours |
| Am-246 |
39.0 minutes |
Facts
Date of Discovery: 1945
Discoverer: G.T. Seaborg
Name Origin: After America
Uses: Smoke Detectors
Obtained From: Man-made