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physical object > natural object > collection of particles > phase of matter > solid > metal > actinide > transuranium element > americium > americium 241
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americium 241 comparison table
Subject has nuclear spin has specimen has decay mode is a kind of has number of neutron has definition has number of nucleon has synthesis mechanism has half life has nuclear magnetic moment is an instance of has symbol has use has atomic mass
americium   radioactive element radioactive silvery metal which does not occur naturally     Amsource of radiation for γ-radiotherapy 
americium 241I = 5/2-commercially available, under licenceγ 146 241241Pu subjected to neutron bombardment over a period of years432.2 yearsμ = 1.61americium241Amresearch, medical therapy, medical diagnosis241.056823

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