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Americium @ Periodic Table of Chemical Elements

95

Am

Americium

243.0614

2
8
18
32
25
8
2
PropertyValue
Atomic number95
Atomic weight243.0614 amu
Electronic configuration1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s25f7
Stable and very long lived isotopesNone
Density 13.69 g/cm3 (STP)
Melting 994 °C
Boiling 2607 °C
Ionic radius 0.982 Å
First ionization potential 5.990 eV
Periodict table
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