![[ATOM]](atom.gif) |
Curium
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Information valid for Cm-247 unless otherwise noted
Basic Information
Symbol: Cm
Atomic Number: 96
Mass: (247.0)
Melting Point: 1340.0 C
Boiling Point: Unknown
Number of Protons/Electrons: 96
Number of Neutrons: 151
Classification: Rare Earth
Crystal Structure: Unknown
Density @ 293 K: 13.511 g/cm3
Color: Unknown
Atomic Structure
![[Bohr Model of Curium]](b0096.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: 9
Seventh Energy Level: 2
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Isotopes
| Isotope |
Half Life |
| Cm-241 |
32.8 days |
| Cm-242 |
162.8 days |
| Cm-243 |
29.1 years |
| Cm-244 |
18.1 years |
| Cm-245 |
8500.0 years |
| Cm-246 |
4760.0 years |
| Cm-247 |
1.56E7 years |
| Cm-248 |
348000.0 years |
| Cm-249 |
1.1 hours |
| Cm-250 |
9700.0 years |
Facts
Date of Discovery: 1944
Discoverer: G.T. Seaborg
Name Origin: After Pierre and Marie Curie
Uses: No uses known
Obtained From: Man-made