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Actinium is a transition metal, solid, very radioactive, artificial.
Americium react with the majority of non metals and also with inorganic acids. The Pauling electronegativity is 1,5. Valences of americium are between 2 an 7.
- melting point: 1176 0C
- boiling point: 2 607 0C
- density: 12 g/cm3
- heat of fusion: 14,39 kJ/mol
- therrmal conductivity: 10 W/m.K
- electrical resistivity: 0,69 microohm.m
- ionization energy (first): 578 kJ/mol
- covalent radius: approx. 180 pm
- molar heat capacity: 62,7 J.mol/K
- is paramagnetic
- electron configuration: [Rn]5f7.7s2
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoit is extreamly toxic and is found in fire alarms...other information
type of element:metal
atomic #:95
period:7
Atomic Mass:(243)
group #:9
actinide
symbol:Am
found by:Glen Seaborg
when:1944
where:america
I hope you find this helpfull!!!
Wiki User
∙ 13y agoAmericium is a silvery-white metal.
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