Amerikiom

Amerikiom (Am)

chemical element with the atomic number of 95
Atomic Number95
Atomic Weight243
Niver mas223
Group
Period7
Blockf
Proton95 p+
Neutron128 n0
Elektron95 e-
Animated Bohr model of Am (Amerikiom)

Physical Property

Atomic Radius
molar volume
Covalent Radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density
Atomic Radii Of The Elements: Amerikiom0102030405060708090100110120130140150160170180190200210220230240250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energiezh
proton affinity
electron affinity
ionization energy
ionization energy of Am (Amerikiom)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
Elektron
electron shell2, 8, 18, 32, 25, 8, 2
Bohr model: Am (Amerikiom)
valence electron2
Lewis structure: Am (Amerikiom)
electron configuration[Rn] 5f7 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f7 7s2
Enhanced Bohr model of Am (Amerikiom)
Orbital Diagram of Am (Amerikiom)
oxidation number2, 3, 4, 5, 6, 7
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
Poent tric'hement
appearance
liv
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
Gwarellegezh
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000515 m³/Kg
magnetic susceptibility (Molar)
0,00000001251 m³/mol
magnetic susceptibility (Volume)
0,000704
magnetic ordering
Curie temperature
Néel temperature
framm
Crystal StructureSimple Hexagonal ()
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
rummatadur
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number39
Mendeleev Number26
Pettifor Number42
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
74
Neutron Mass Absorption
quantum number8S7/2
space group194 (P63/mmc)

Isotopes of Americium

Stable Isotopes0
Unstable Isotopes27
Natural Isotopes0

223Am

Niver mas223
niver a neutron128
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10 ± 9 ms
spin9/2
nuclear quadrupole moment
time of discovery or invention2015
parity-

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

224Am

Niver mas224
niver a neutron129
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

225Am

Niver mas225
niver a neutron130
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
time of discovery or invention
parity-

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

226Am

Niver mas226
niver a neutron131
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

227Am

Niver mas227
niver a neutron132
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
time of discovery or invention
parity-

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

228Am

Niver mas228
niver a neutron133
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

229Am

Niver mas229
niver a neutron134
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,8 ± 1,5 s
spin5/2
nuclear quadrupole moment
time of discovery or invention2015
parity-

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

230Am

Niver mas230
niver a neutron135
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
40 ± 9 s
spin1
nuclear quadrupole moment
time of discovery or invention2003
parity-

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

231Am

Niver mas231
niver a neutron136
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
time of discovery or invention
parity-

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

232Am

Niver mas232
niver a neutron137
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,31 ± 0,04 m
spin1
nuclear quadrupole moment
time of discovery or invention1967
parity-

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

233Am

Niver mas233
niver a neutron138
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,2 ± 0,8 m
spin5/2
nuclear quadrupole moment
time of discovery or invention2000
parity-

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

234Am

Niver mas234
niver a neutron139
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,32 ± 0,08 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1967
parity-

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

235Am

Niver mas235
niver a neutron140
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,3 ± 0,6 m
spin5/2
nuclear quadrupole moment
time of discovery or invention1996
parity-

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

236Am

Niver mas236
niver a neutron141
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,6 ± 0,1 m
spin5
nuclear quadrupole moment
time of discovery or invention1998
parity-

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

237Am

Niver mas237
niver a neutron142
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
73,6 ± 0,8 m
spin5/2
nuclear quadrupole moment
time of discovery or invention1970
parity-

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

238Am

Niver mas238
niver a neutron143
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
98 ± 3 m
spin1
nuclear quadrupole moment
time of discovery or invention1950
parity+

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

239Am

Niver mas239
niver a neutron144
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
11,9 ± 0,1 h
spin5/2
nuclear quadrupole moment
time of discovery or invention1949
parity-

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

240Am

Niver mas240
niver a neutron145
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
50,8 ± 0,3 h
spin3
nuclear quadrupole moment
time of discovery or invention1949
parity-

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

241Am

Niver mas241
niver a neutron146
Relative Atomic Mass
g-factor
0,64 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
432,6 ± 0,6 y
spin5/2
nuclear quadrupole moment
4,34 ± 0,05
time of discovery or invention1949
parity-

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

242Am

Niver mas242
niver a neutron147
Relative Atomic Mass
g-factor
0,3854 ± 0,0017
natural abundance
radioactivity☢️ radioactive element
half-life
16,02 ± 0,02 h
spin1
nuclear quadrupole moment
-2,4 ± 0,4
time of discovery or invention1949
parity-

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

243Am

Niver mas243
niver a neutron148
Relative Atomic Mass
g-factor
0,608 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
7,35 ± 0,009 ky
spin5/2
nuclear quadrupole moment
4,32 ± 0,06
time of discovery or invention1950
parity-

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

244Am

Niver mas244
niver a neutron149
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,01 ± 0,03 h
spin6
nuclear quadrupole moment
time of discovery or invention1950
parity-

decay modeintensity
β (β decay)100%

245Am

Niver mas245
niver a neutron150
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,05 ± 0,01 h
spin5/2
nuclear quadrupole moment
time of discovery or invention1955
parity+

decay modeintensity
β (β decay)100%

246Am

Niver mas246
niver a neutron151
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
39 ± 3 m
spin7
nuclear quadrupole moment
time of discovery or invention1955
parity-

decay modeintensity
β (β decay)100%

247Am

Niver mas247
niver a neutron152
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
23 ± 1,3 m
spin5/2
nuclear quadrupole moment
time of discovery or invention1967
parity

decay modeintensity
β (β decay)100%

248Am

Niver mas248
niver a neutron153
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3
nuclear quadrupole moment
time of discovery or invention
parity+

decay modeintensity
β (β decay)

249Am

Niver mas249
niver a neutron154
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
time of discovery or invention
parity

decay modeintensity
β (β decay)
Americium microscope

istor

dizoloer pe ijinerG.T.Seaborg, R.A.James, L.O.Morgan, A.Ghiorso
location of discoveryUnited States
time of discovery or invention1945
EtimologiezhNamed for the American continent, by analogy with europium.
pronunciationam-er-ISH-i-em (saozneg)

mammenn

Abundance
Abundance in Earth's crust
natural abundance (meurvor)
natural abundance (human body)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Heol)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants