Actinium Ac

atomic #89 atomic mass 227u melting and boiling point in celsius degrees 1,050 celsius melting 3,197celsius boiling

# of Protons 89 # of neutrons 138 # of electrons 89

classification Metal cost $1000 for 100 grams belongs to rare earth metals

origin of name the greek Aktinos discovered in 1902 discovered by Friedrich otto

No known uses outside the laboratory

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internet research sites used for project