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| physical object > natural object > collection of particles > phase of matter > solid > metal > actinide > transuranium element > americium > americium 244 |
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| americium 244 comparison table | |||||||||
| Subject | has decay mode | is a kind of | has number of neutron | has definition | has number of nucleon | has half life | is an instance of | has symbol | has atomic mass |
|---|---|---|---|---|---|---|---|---|---|
| americium | radioactive element | radioactive silvery metal which does not occur naturally | Am | ||||||
| americium 244 | γ | 149 | 244 | 10.0 hours | americium | 244Am | 244.064279 |
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