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Actinium

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Actinium
Ac-TableImage.png
Atomic symbol Ac
Atomic number 89
Atomic mass 227
Classification Actinide
Melting point 1050°C1,323.15 K
1,922 °F
2,381.67 °R
Boiling point 3198°C3,471.15 K
5,788.4 °F
6,248.07 °R
Density 10.07 g/cm³
Electron shell 089 Actinium.png
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