Amerizioa

Amerizioa (Am)

Zenbaki atomikoa 95 duen elementu kimiko artifizial eta erradioaktiboa, aktinidoen seriekoa. Transuranidoen multzokoa da.
Atomic Number95
Atomic Weight243
masa-zenbaki223
Group
Period7
Blockf
protoi95 p+
neutroi128 n0
elektroi95 e-
Animated Bohrren eredu atomikoa of Am (Amerizioa)

Propietate Fisiko

Erradio Atomiko
175 pm
bolumen molar
Erradio Kobalente
166 pm
Metallic Radius
Erradio ioniko
121 pm
Crystal Radius
135 pm
Van der Waalsen erradio
244 pm
dentsitatea
Atomic Radii Of The Elements: Amerizioa0255075100125150175200225250pmErradio AtomikoErradio KobalenteMetallic RadiusVan der Waalsen erradio

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
ionizazio energia
ionizazio energia of Am (Amerizioa)
Irakite-entalpia
238,5 kJ/mol
urtze-entalpia
formazio entalpia estandarra
284 kJ/mol
elektroi
elektroi geruza2, 8, 18, 32, 25, 8, 2
Bohrren eredu atomikoa: Am (Amerizioa)
balentzia-elektroi2
Lewis egitura: Am (Amerizioa)
electron configuration[Rn] 5f7 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f7 7s2
Enhanced Bohrren eredu atomikoa of Am (Amerizioa)
Orbital Diagram of Am (Amerizioa)
Oxidazio-egoera2, 3, 4, 5, 6, 7
Elektronegatibotasun
Electrophilicity Index
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
Melting Point
1.449,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore
Silver
appearancesilvery white
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
Bero-dilatazio
molar heat capacity
Specific Heat Capacity
indize adiabatiko
electrical properties
type
Eroankortasun elektriko
Erresistibitate elektriko
Supereroankortasun
0,6 K
Magnetismo
typeparamagnetic
suszeptibilitate magnetiko (Mass)
0,0000000515 m³/Kg
suszeptibilitate magnetiko (Molar)
0,00000001251 m³/mol
suszeptibilitate magnetiko (Volume)
0,000704
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal StructureSimple Hexagonal ()
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
materialen propietate mekaniko
Gogortasun
konprimagarritasun-modulu
Zizaila modulua
Youngen modulu
Poissonen modulu
Soinuaren lastertasun
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number39
Mendeleev Number26
Pettifor Number42
Geochemical Class
Goldschmidt classificationsynthetic

beste batzuk

Gas Basicity
polarizability
131 ± 25 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
74
Neutron Mass Absorption
zenbaki kuantiko8S7/2
talde espazial194 (P63/mmc)

Isotopes of Americium

Stable Isotopes0
Unstable Isotopes27
Natural Isotopes0

223Am

masa-zenbaki223
neutron number128
atomo-masa erlatibo
223,04584 ± 0,000322 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
10 ± 9 ms
spin9/2
nuclear quadrupole moment
aurkikuntza-data2015
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

224Am

masa-zenbaki224
neutron number129
atomo-masa erlatibo
224,046442 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin
nuclear quadrupole moment
aurkikuntza-data
parity

decay modeintensity
α (α emission)
SF (spontaneous fission)

225Am

masa-zenbaki225
neutron number130
atomo-masa erlatibo
225,045508 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin9/2
nuclear quadrupole moment
aurkikuntza-data
parity-

decay modeintensity
α (α emission)
SF (spontaneous fission)

226Am

masa-zenbaki226
neutron number131
atomo-masa erlatibo
226,04613 ± 0,000322 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin
nuclear quadrupole moment
aurkikuntza-data
parity

decay modeintensity
α (α emission)
SF (spontaneous fission)

227Am

masa-zenbaki227
neutron number132
atomo-masa erlatibo
227,045282 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin9/2
nuclear quadrupole moment
aurkikuntza-data
parity-

decay modeintensity
α (α emission)
SF (spontaneous fission)

228Am

masa-zenbaki228
neutron number133
atomo-masa erlatibo
228,046001 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin
nuclear quadrupole moment
aurkikuntza-data
parity

decay modeintensity
α (α emission)
SF (spontaneous fission)

229Am

masa-zenbaki229
neutron number134
atomo-masa erlatibo
229,045282534 ± 0,000114169 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,8 ± 1,5 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data2015
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

230Am

masa-zenbaki230
neutron number135
atomo-masa erlatibo
230,046025 ± 0,000153 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
40 ± 9 s
spin1
nuclear quadrupole moment
aurkikuntza-data2003
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ SF (β+-delayed fission)30%

231Am

masa-zenbaki231
neutron number136
atomo-masa erlatibo
231,045529 ± 0,000322 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin5/2
nuclear quadrupole moment
aurkikuntza-data
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)

232Am

masa-zenbaki232
neutron number137
atomo-masa erlatibo
232,046613 ± 0,000322 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,31 ± 0,04 m
spin1
nuclear quadrupole moment
aurkikuntza-data1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)97%
α (α emission)
β+ SF (β+-delayed fission)0.069%

233Am

masa-zenbaki233
neutron number138
atomo-masa erlatibo
233,046468 ± 0,000123 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
3,2 ± 0,8 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data2000
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)4.5%

234Am

masa-zenbaki234
neutron number139
atomo-masa erlatibo
234,047731 ± 0,000172 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,32 ± 0,08 m
spin0
nuclear quadrupole moment
0
aurkikuntza-data1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.039%
β+ SF (β+-delayed fission)0.0066%

235Am

masa-zenbaki235
neutron number140
atomo-masa erlatibo
235,047906478 ± 0,000056661 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
10,3 ± 0,6 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1996
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.6%
α (α emission)0.4%

236Am

masa-zenbaki236
neutron number141
atomo-masa erlatibo
236,049427 ± 0,000127 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
3,6 ± 0,1 m
spin5
nuclear quadrupole moment
aurkikuntza-data1998
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)4%

237Am

masa-zenbaki237
neutron number142
atomo-masa erlatibo
237,049995 ± 0,000064 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
73,6 ± 0,8 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1970
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.975%
α (α emission)0.025%

238Am

masa-zenbaki238
neutron number143
atomo-masa erlatibo
238,051982531 ± 0,000063243 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
98 ± 3 m
spin1
nuclear quadrupole moment
aurkikuntza-data1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)1%

239Am

masa-zenbaki239
neutron number144
atomo-masa erlatibo
239,053022729 ± 0,000002127 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
11,9 ± 0,1 h
spin5/2
nuclear quadrupole moment
aurkikuntza-data1949
parity-

decay modeintensity
ϵ (electron capture)99.99%
α (α emission)0.01%

240Am

masa-zenbaki240
neutron number145
atomo-masa erlatibo
240,055298374 ± 0,000014849 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
50,8 ± 0,3 h
spin3
nuclear quadrupole moment
aurkikuntza-data1949
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)1.9%

241Am

masa-zenbaki241
neutron number146
atomo-masa erlatibo
241,056827343 ± 0,000001195 Da
g-factor
0,64 ± 0,004
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
432,6 ± 0,6 y
spin5/2
nuclear quadrupole moment
4,34 ± 0,05
aurkikuntza-data1949
parity-

decay modeintensity
α (α emission)100%
SF (spontaneous fission)3.6%

242Am

masa-zenbaki242
neutron number147
atomo-masa erlatibo
242,059547358 ± 0,000001199 Da
g-factor
0,3854 ± 0,0017
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
16,02 ± 0,02 h
spin1
nuclear quadrupole moment
−2,4 ± 0,4
aurkikuntza-data1949
parity-

decay modeintensity
β (β decay)82.7%
ϵ (electron capture)17.3%

243Am

masa-zenbaki243
neutron number148
atomo-masa erlatibo
243,061379889 ± 0,00000149 Da
g-factor
0,608 ± 0,004
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
7,35 ± 0,009 ky
spin5/2
nuclear quadrupole moment
4,32 ± 0,06
aurkikuntza-data1950
parity-

decay modeintensity
α (α emission)100%
SF (spontaneous fission)3.7%

244Am

masa-zenbaki244
neutron number149
atomo-masa erlatibo
244,064282892 ± 0,0000016 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
10,01 ± 0,03 h
spin6
nuclear quadrupole moment
aurkikuntza-data1950
parity-

decay modeintensity
β (β decay)100%

245Am

masa-zenbaki245
neutron number150
atomo-masa erlatibo
245,066452827 ± 0,000002024 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,05 ± 0,01 h
spin5/2
nuclear quadrupole moment
aurkikuntza-data1955
parity+

decay modeintensity
β (β decay)100%

246Am

masa-zenbaki246
neutron number151
atomo-masa erlatibo
246,069774 ± 0,000019 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
39 ± 3 m
spin7
nuclear quadrupole moment
aurkikuntza-data1955
parity-

decay modeintensity
β (β decay)100%

247Am

masa-zenbaki247
neutron number152
atomo-masa erlatibo
247,072092 ± 0,000107 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
23 ± 1,3 m
spin5/2
nuclear quadrupole moment
aurkikuntza-data1967
parity

decay modeintensity
β (β decay)100%

248Am

masa-zenbaki248
neutron number153
atomo-masa erlatibo
248,075752 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin3
nuclear quadrupole moment
aurkikuntza-data
parity+

decay modeintensity
β (β decay)

249Am

masa-zenbaki249
neutron number154
atomo-masa erlatibo
249,07848 ± 0,00032 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin5/2
nuclear quadrupole moment
aurkikuntza-data
parity

decay modeintensity
β (β decay)
Americium microscope

historia

aurkitzailea edo asmatzaileaG.T.Seaborg, R.A.James, L.O.Morgan, A.Ghiorso
aurkikuntzaren lekuaUnited States
aurkikuntza-data1945
etimologiaNamed for the American continent, by analogy with europium.
pronunciationam-er-ISH-i-em (ingelesa)

source

Abundance
Abundance in Earth's crust
natural abundance (ozeano)
natural abundance (gizakiaren gorputza)
0 %
natural abundance (Meteoroide)
0 %
natural abundance (Eguzkia)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants