Amẹrísíọ̀m

Americium
95Am
Eu ↑ Am ↓ (Uqp) Tábìlì ìdásìkò plutonium ← americium → curium
Ìhànsójú
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Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà	americium, Am, 95
Ìpèlóhùn	/ˌæməˈrɪsiəm/ AM-ə-RIS-ee-əm
Ẹ̀ka ẹ́límẹ̀nti	actinide
Ẹgbẹ́, àsìkò, àdìpò	n/a, 7, f
Ìwúwo átọ́mù	(243)
Ìtòléra ẹ̀lẹ́ktrónì	[Rn] 5f7 7s2 2, 8, 18, 32, 25, 8, 2
Physical properties
Phase	solid
Density (near r.t.)	12 g·cm−3
Melting point	1449 K, 1176 °C, 2149 °F
Boiling point	2880 K, 2607 °C, 4725 °F
Heat of fusion	14.39 kJ·mol−1
Molar heat capacity	62.7 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1239 1356
Atomic properties
Oxidation states	6, 5, 4, 3, 2 (amphoteric oxide)
Electronegativity	1.3 (Pauling scale)
Ionization energies	1st: 578 kJ·mol−1
Atomic radius	173 pm
Covalent radius	180±6 pm
Miscellanea
Crystal structure	hexagonal
Magnetic ordering	no data
Thermal conductivity	10 W·m−1·K−1
CAS registry number	7440-35-9
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù americium
iso NA half-life DM DE (MeV) DP 241Am syn 432.2 y SF - - α 5.486 237Np 242mAm syn 141 y IT 0.049 242Am α 5.637 238Np SF - - 243Am syn 7370 y SF - - α 5.275 239Np

Amẹrísíọ̀m tabi Americium je apilese alasopapo to ni ami-idamo Am ati nomba atomu 95. Gege bi apilese onide alagbararadio, americium je aktinidi ti o je bibosowo Glenn T. Seaborg ni 1944 nigba to n digbolu plutonium pelu awon neutroni be sini o je apilese teyinuraniom kerin to je wiwari. Won soloruko fun orile Amerika, ni ibaramu mo europium.