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physical object > natural object > collection of particles > phase of matter > solid > metal > actinide > transuranium element > americium > americium 242m

americium 242m comparison table

Subject	has nuclear spin	has decay mode	is a kind of	has number of neutron	has definition	has number of nucleon	has half life	has nuclear magnetic moment	is an instance of	has symbol
americium			radioactive element		radioactive silvery metal which does not occur naturally					Am
americium 242m	I = 5-	γ		147		242	141 years	μ = 1.0	americium	242mAm

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