EUROPIUM, Eu (63)
HYDROGEN TO OGANESSON
ATOMIC ARCHITECTURE
Spectrograph
Elemental Tile
Europium
EUROPIUM
Eu (63)
jʊəˈroʊpiəm
PHONETICS
Europium is a moderately hard, silvery metal which readily oxidizes in air and water. There is no significant biological role and is relatively non-toxic. Most applications of europium exploit the phosphorescence of europium compounds.
ELEMENT BRIEF
1901 by Eugene Demarcay, France.
DISCOVERY
From the name of Europe.
ETYMOLOGY
Europium
ELEMENT
Eu
SYMBOL
63
ATOMIC NUMBER
7440-53-1
CAS NUMBER
ELEMENTAL SPECTRUM
Silver
ELEMENTAL COLOUR
-
REFRACTIVE INDEX
0.150
POISSON RATIO
28.979 cm³
MOLAR VOLUME
-
BRINELL HARDNESS
3.00
MOHS HARDNESS
167.00M Pa, 1.648'2k Atm
VICKERS HARDNESS
-
SPEED OF SOUND
8.30G Pa, 81.914'6k Atm
BULK MODULUS
7.90G Pa, 77.966'9k Atm
SHEAR MODULUS
18.00G Pa, 177.646'2k Atm
YOUNG MODULUS
ALLOTROPES
NONE
1,095.15 K, 822.00 °C
MELTING POINT
1,800.15 K, 1,527.00 °C
BOILING POINT
-
AUTOMATIC IGNITION
-
FLASHPOINT
-
CRITICAL TEMPERATURE
-
CRITICAL PRESSURE
14.000'000 W/(m K)
THERMAL CONDUCTIVITY
0.000'035'0 K¯¹
THERMAL EXPANSION
182.00 J/(kg K)
SPECIFIC HEAT
9.200 kJ/mol
HEAT FUSION
175.000 kJ/mol
HEAT VAPORISATION
-
HEAT COMBUSTION
-
CURIE POINT
90.50 K, -182.65 °C
NEEL POINT
-
ADIABATIC INDEX
Solid
PHASE
Conductor
ELECTRICAL TYPE
1.10M S/m
CONDUCTIVITY
900.00n Ω.m
RESISTIVITY
-
SUPERCONDUCTING POINT
Paramagnetic
MAGNETIC TYPE
0.000'000'276'0
MASS SUSCEPTIBILITY
0.000'000'041'942'00
MOLAR SUSCEPTIBILITY
0.001'447'300'00
VOLUME SUSCEPTIBILITY
Lanthanide
CLASSIFICATION
151.964'370'5
ATOMIC WEIGHT
231 pm
ATOMIC RADIUS
168 pm
COVALENT RADIUS SINGLE BOND
134 pm
COVALENT RADIUS DOUBLE BOND
-
COVALENT RADIUS TRIPLE BOND
233 pm
VAN DER WAALS RADIUS
[Xe]6s²4f⁷
ELECTRON CONFIGURATION
Cubic, Body-centred
CRYSTAL STRUCTURE
5.244'00 g/cm³
DENSITY AS SOLID
5.130'00 g/cm³
DENSITY AS LIQUID
-
DENSITY AS GAS
lm_3m
SPACE GROUP NAME
229
SPACE GROUP NUMBER
π/2, π/2 π/2
LATTICE ANGLES
458.1, 458.1 458.1 pm
LATTICE CONSTANTS
3
VALENCE
-
ELECTRONEGATIVITY
11.19 kJ/mol
ELECTRON AFFINITY
IONISATION ENERGY
0.000'000'1 %
UNIVERSE
0.000'002'9 %
METEORITES
0.000'000'05 %
SUN
0.000'18 %
EARTH CRUST
0.000'000'000'01 %
OCEANS
-
HUMANS
Stable
HALF LIFE
Stable
LIFETIME
4f⁷ = 4, 3, +3, +1/2
QUANTUM NUMBERS
9.200'00 b σs
NEUTRON CROSS SECTION
4,530.000'00 b σa
NEUTRON MASS ABSORPTION
STABLE ISOTOPES
UNSTABLE ISOTOPES
ISOTOPIC CHAIN
Isotope | Stability | Symbol | Type | Protons | Neutrons | Spin | Parity | Mass | Abundance | Mass Measure | Mass Excess | Binding Energy | Dipole Moment | Quadrupole Moment | Halflife in Years | Halflife in Seconds | A01 Decay Probability | A01 Decay Mode | A01 Decay Energy | A01 Decay Daughter | A01 Decay Link | A02 Decay Probability | A02 Decay Mode | A02 Decay Energy | A02 Decay Daughter | A02 Decay Link | A03 Decay Probability | A03 Decay Mode | A03 Decay Energy | A03 Decay Daughter | A03 Decay Link | A04 Decay Probability | A04 Decay Mode | A04 Decay Energy | A04 Decay Daughter | A04 Decay Link | A05 Decay Probability | A05 Decay Mode | A05 Decay Energy | A05 Decay Daughter | A05 Decay Link | A06 Decay Probability | A06 Decay Mode | A06 Decay Energy | A06 Decay Daughter | A06 Decay Link | Y01 Decay Product Yield | Y01 Decay Product Nuclide | Y02 Decay Product Yield | Y02 Decay Product Nuclide | Y03 Decay Product Yield | Y03 Decay Product Nuclide | Y04 Decay Product Yield | Y04 Decay Product Nuclide | Y05 Decay Product Yield | Y05 Decay Product Nuclide | Y06 Decay Product Yield | Y06 Decay Product Nuclide | Y07 Decay Product Yield | Y07 Decay Product Nuclide | Y08 Decay Product Yield | Y08 Decay Product Nuclide | Y09 Decay Product Yield | Y09 Decay Product Nuclide | Y10 Decay Product Yield | Y10 Decay Product Nuclide | Y11 Decay Product Yield | Y11 Decay Product Nuclide | Y12 Decay Product Yield | Y12 Decay Product Nuclide | ||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Isotope_063_eu_130_u | Unstable | ¹³⁰Eu | Fermion | 63 | p | 67 | n | 2 | 1 | 129.963'569'000'0 | u | ~ 0 | % | ~ 0 | -33.936'000'000'0 | MeV | 7.953'000'000'0 | MeV | - | - | 3.49E-11 | year | 1.100 | milli-seconds ( x⁻³ ) | 99.000'000 | % | p | 1,028.000 | keV | ¹²⁹Sm | ¹³⁰Eu > [ 99 % , p , 1,028.0 keV ] > ¹²⁹Sm | β+ | 12,623.000 | keV | ¹³⁰Sm | ¹³⁰Eu > [ , β+ , 12,623.0 keV ] > ¹³⁰Sm | ? | % | ¹²⁹Xe | ? | % | ¹²⁸Xe | ? | % | ¹³⁰Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_131_u | Unstable | ¹³¹Eu | Boson | 63 | p | 68 | n | 3/2 | 1 | 130.957'753'000'0 | u | ~ 0 | % | ~ 0 | -39.353'000'000'0 | MeV | 7.995'000'000'0 | MeV | - | - | 5.64E-10 | year | 17.800 | milli-seconds ( x⁻³ ) | 88.000'000 | % | p | 932.200 | keV | ¹³⁰Sm | ¹³¹Eu > [ 88 % , p , 932.2 keV ] > ¹³⁰Sm | β+ | 9,824.000 | keV | ¹³¹Sm | ¹³¹Eu > [ , β+ , 9,824.0 keV ] > ¹³¹Sm | 12.000'000 | % | ¹³¹Xe | ? | % | ¹²⁹Xe | ? | % | ¹³⁰Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_132_u | Unstable | ¹³²Eu | Fermion | 63 | p | 69 | n | ? | 0 | 131.954'370'000'0 | u | ~ 0 | % | ~ 0 | -42.504'000'000'0 | MeV | 8.020'000'000'0 | MeV | - | - | 3.17E-9 | year | 100.000 | milli-seconds ( x⁻³ ) | 100.000'000 | % | β+ | 11,721.000 | keV | ¹³²Sm | ¹³²Eu > [ 100 % , β+ , 11,721.0 keV ] > ¹³²Sm | p | 405.000 | keV | ¹³¹Sm | ¹³²Eu > [ , p , 405.0 keV ] > ¹³¹Sm | 0.000'050 | % | ¹³¹Xe | ? | % | ¹³²Xe | ? | % | ¹³⁰Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_133_u | Unstable | ¹³³Eu | Boson | 63 | p | 70 | n | 11/2 | -1 | 132.949'240'000'0 | u | ~ 0 | % | ~ 0 | -47.283'000'000'0 | MeV | 8.056'000'000'0 | MeV | - | - | 6.34E-9 | year | 200.000 | milli-seconds ( x⁻³ ) | ? | % | β+ | 8,824.000 | keV | ¹³³Sm | ¹³³Eu > [ ? % , β+ , 8,824.0 keV ] > ¹³³Sm | ? | % | ¹³³Cs | ? | % | ¹³²Xe | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_134_u | Unstable | ¹³⁴Eu | Fermion | 63 | p | 71 | n | ? | 0 | 133.946'510'000'0 | u | ~ 0 | % | ~ 0 | -49.826'000'000'0 | MeV | 8.075'000'000'0 | MeV | - | - | 1.58E-8 | year | 500.000 | milli-seconds ( x⁻³ ) | 100.000'000 | % | β+ | 10,659.000 | keV | ¹³⁴Sm | ¹³⁴Eu > [ 100 % , β+ , 10,659.0 keV ] > ¹³⁴Sm | β+p | ? | keV | ¹³³Pm | ¹³⁴Eu > [ , β+p , ? keV ] > ¹³³Pm | 100.000'000 | % | ¹³⁴Ba | ? | % | ¹³³Cs | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_135_u | Unstable | ¹³⁵Eu | Boson | 63 | p | 72 | n | 11/2 | -1 | 134.941'820'000'0 | u | ~ 0 | % | ~ 0 | -54.194'000'000'0 | MeV | 8.108'000'000'0 | MeV | - | - | 4.75E-8 | year | 1.500 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 7,641.000 | keV | ¹³⁵Sm | ¹³⁵Eu > [ 100 % , β+ , 7,641.0 keV ] > ¹³⁵Sm | β+p | ? | keV | ¹³⁴Pm | ¹³⁵Eu > [ , β+p , ? keV ] > ¹³⁴Pm | 100.000'000 | % | ¹³⁵Ba | 0.020'000 | % | ¹³⁴Ba | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_136_u | Unstable | ¹³⁶Eu | Fermion | 63 | p | 73 | n | 7 | 1 | 135.939'600'000'0 | u | ~ 0 | % | ~ 0 | -56.262'000'000'0 | MeV | 8.123'000'000'0 | MeV | - | - | 1.05E-7 | year | 3.300 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 9,527.000 | keV | ¹³⁶Sm | ¹³⁶Eu > [ 100 % , β+ , 9,527.0 keV ] > ¹³⁶Sm | β+p | ? | keV | ¹³⁵Pm | ¹³⁶Eu > [ , β+p , ? keV ] > ¹³⁵Pm | 0.090'000 | % | ¹³⁵Ba | ? | % | ¹³⁶Ba | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_137_u | Unstable | ¹³⁷Eu | Boson | 63 | p | 74 | n | 11/2 | -1 | 136.935'570'000'0 | u | ~ 0 | % | ~ 0 | -60.016'000'000'0 | MeV | 8.150'000'000'0 | MeV | - | - | 2.66E-7 | year | 8.400 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 9,687.000 | keV | ¹³⁷Sm | ¹³⁷Eu > [ 100 % , β+ , 9,687.0 keV ] > ¹³⁷Sm | ? | % | ¹³⁷Ba | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_138_u | Unstable | ¹³⁸Eu | Fermion | 63 | p | 75 | n | 6 | -1 | 137.933'709'000'0 | u | ~ 0 | % | ~ 0 | -61.749'669'000'0 | MeV | 8.161'620'000'0 | MeV | 5.200'000'000'0 | nm | - | 3.83E-7 | year | 12.100 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 8,725.900 | keV | ¹³⁸Sm | ¹³⁸Eu > [ 100 % , β+ , 8,725.9 keV ] > ¹³⁸Sm | ? | % | ¹³⁸Ba | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_139_u | Unstable | ¹³⁹Eu | Boson | 63 | p | 76 | n | 11/2 | -1 | 138.929'792'280'0 | u | ~ 0 | % | ~ 0 | -65.398'070'000'0 | MeV | 8.187'218'000'0 | MeV | - | - | 5.67E-7 | year | 17.900 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 5,960.000 | keV | ¹³⁹Sm | ¹³⁹Eu > [ 100 % , β+ , 5,960.0 keV ] > ¹³⁹Sm | 100.000'000 | % | ¹³⁹La | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_140_u | Unstable | ¹⁴⁰Eu | Fermion | 63 | p | 77 | n | 1 | 1 | 139.928'087'607'0 | u | ~ 0 | % | ~ 0 | -66.985'963'000'0 | MeV | 8.197'732'000'0 | MeV | 1.365'000'000'0 | nm | 0.310'000'000'0 | b | 4.78E-8 | year | 1.510 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 7,447.800 | keV | ¹⁴⁰Sm | ¹⁴⁰Eu > [ 100 % , β+ , 7,447.8 keV ] > ¹⁴⁰Sm | 100.000'000 | % | ¹⁴⁰Ce | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_141_u | Unstable | ¹⁴¹Eu | Boson | 63 | p | 78 | n | 5/2 | 1 | 140.924'930'720'0 | u | ~ 0 | % | ~ 0 | -69.926'584'000'0 | MeV | 8.217'691'000'0 | MeV | 3.494'000'000'0 | nm | 0.850'000'000'0 | b | 1.29E-6 | year | 40.700 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 4,989.900 | keV | ¹⁴¹Sm | ¹⁴¹Eu > [ 100 % , β+ , 4,989.9 keV ] > ¹⁴¹Sm | 100.000'000 | % | ¹⁴¹Pr | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_142_u | Unstable | ¹⁴²Eu | Fermion | 63 | p | 79 | n | 1 | 1 | 141.923'434'945'0 | u | ~ 0 | % | ~ 0 | -71.319'889'000'0 | MeV | 8.226'472'000'0 | MeV | 1.536'000'000'0 | nm | 0.120'000'000'0 | b | 7.48E-8 | year | 2.360 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 6,650.800 | keV | ¹⁴²Sm | ¹⁴²Eu > [ 100 % , β+ , 6,650.8 keV ] > ¹⁴²Sm | 100.000'000 | % | ¹⁴²Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_143_u | Unstable | ¹⁴³Eu | Boson | 63 | p | 80 | n | 5/2 | 1 | 142.920'297'509'0 | u | ~ 0 | % | ~ 0 | -74.242'392'000'0 | MeV | 8.245'824'000'0 | MeV | 3.673'000'000'0 | nm | 0.510'000'000'0 | b | 4.91E-6 | year | 154.980 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 4,258.600 | keV | ¹⁴³Sm | ¹⁴³Eu > [ 100 % , β+ , 4,258.6 keV ] > ¹⁴³Sm | 100.000'006 | % | ¹⁴³Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_144_u | Unstable | ¹⁴⁴Eu | Fermion | 63 | p | 81 | n | 1 | 1 | 143.918'816'823'0 | u | ~ 0 | % | ~ 0 | -75.621'643'000'0 | MeV | 8.254'191'000'0 | MeV | 1.893'000'000'0 | nm | 0.100'000'000'0 | b | 3.23E-7 | year | 10.200 | seconds ( x⁰ ) | 100.000'000 | % | β+ | 5,328.100 | keV | ¹⁴⁴Sm | ¹⁴⁴Eu > [ 100 % , β+ , 5,328.1 keV ] > ¹⁴⁴Sm | ? | % | ¹⁴⁰Ce | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_145_u | Unstable | ¹⁴⁵Eu | Boson | 63 | p | 82 | n | 5/2 | 1 | 144.916'265'237'0 | u | ~ 0 | % | ~ 0 | -77.998'429'000'0 | MeV | 8.269'321'000'0 | MeV | 3.993'3.993'3.993'3.993 | nm | 0.290'000'000'0 | b | 1.62E-2 | year | 512.006 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 1,637.110 | keV | ¹⁴⁵Sm | ¹⁴⁵Eu > [ 100 % , β+ , 1,637.11 keV ] > ¹⁴⁵Sm | 100.000'000 | % | ¹⁴⁵Nd | 0.000'000 | % | ¹⁴¹Pr | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_146_u | Unstable | ¹⁴⁶Eu | Fermion | 63 | p | 83 | n | 4 | -1 | 145.917'205'817'0 | u | ~ 0 | % | ~ 0 | -77.122'285'000'0 | MeV | 8.261'964'000'0 | MeV | 1.425'000'000'0 | nm | -0.180'000'000'0 | b | 1.26E-2 | year | 397.958 | kilo-seconds ( x³ ) | 100.000'000 | % | β+ | 2,857.400 | keV | ¹⁴⁶Sm | ¹⁴⁶Eu > [ 100 % , β+ , 2,857.4 keV ] > ¹⁴⁶Sm | 100.000'000 | % | ¹⁴⁵Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_147_u | Unstable | ¹⁴⁷Eu | Boson | 63 | p | 84 | n | 5/2 | 1 | 146.916'746'111'0 | u | ~ 0 | % | ~ 0 | -77.550'499'000'0 | MeV | 8.263'580'000'0 | MeV | 3.724'000'000'0 | nm | 0.550'000'000'0 | b | 6.59E-2 | year | 2.080 | mega-seconds ( x⁶ ) | 100.000'000 | % | β+ | 699.380 | keV | ¹⁴⁷Sm | ¹⁴⁷Eu > [ 100 % , β+ , 699.38 keV ] > ¹⁴⁷Sm | α | 2,990.320 | keV | ¹⁴³Pm | ¹⁴⁷Eu > [ , α , 2,990.32 keV ] > ¹⁴³Pm | 100.002'200 | % | ¹⁴³Nd | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_148_u | Unstable | ¹⁴⁸Eu | Fermion | 63 | p | 85 | n | 5 | -1 | 147.918'085'895'0 | u | ~ 0 | % | ~ 0 | -76.302'498'000'0 | MeV | 8.253'849'000'0 | MeV | 2.340'000'000'0 | nm | 0.350'000'000'0 | b | 1.49E-1 | year | 4.710 | mega-seconds ( x⁶ ) | 100.000'000 | % | β+ | 2,017.500 | keV | ¹⁴⁸Sm | ¹⁴⁸Eu > [ 100 % , β+ , 2,017.5 keV ] > ¹⁴⁸Sm | α | 2,693.700 | keV | ¹⁴⁴Pm | ¹⁴⁸Eu > [ , α , 2,693.7 keV ] > ¹⁴⁴Pm | 100.000'001 | % | ¹⁴⁰Ce | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_149_u | Unstable | ¹⁴⁹Eu | Boson | 63 | p | 86 | n | 5/2 | 1 | 148.917'931'238'0 | u | ~ 0 | % | ~ 0 | -76.446'560'000'0 | MeV | 8.253'590'000'0 | MeV | 3.565'000'000'0 | nm | 0.750'000'000'0 | b | 2.55E-1 | year | 8.040 | mega-seconds ( x⁶ ) | 100.000'000 | % | ϵ | 695.360 | keV | ¹⁴⁹Sm | ¹⁴⁹Eu > [ 100 % , ϵ , 695.36 keV ] > ¹⁴⁹Sm | ? | % | ¹⁴⁵Nd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_150_u | Unstable | ¹⁵⁰Eu | Fermion | 63 | p | 87 | n | 5 | -1 | 149.919'701'819'0 | u | ~ 0 | % | ~ 0 | -74.797'274'000'0 | MeV | 8.241'380'000'0 | MeV | 2.708'000'000'0 | nm | 1.130'000'000'0 | b | 3.68E+1 | years | 1.161 | giga-seconds ( x⁹ ) | 100.000'000 | % | β+ | 1,237.870 | keV | ¹⁵⁰Sm | ¹⁵⁰Eu > [ 100 % , β+ , 1,237.87 keV ] > ¹⁵⁰Sm | 100.000'000 | % | ¹⁵⁰Sm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_151_s | Stable | ¹⁵¹Eu | Boson | 63 | p | 88 | n | 5/2 | 1 | 150.919'850'161'0 | u | 47.810'000 | % | 72.154'780'362'0 | -74.659'094'000'0 | MeV | 8.239'339'000'0 | MeV | 3.471'700'000'0 | nm | 0.903'000'000'0 | b | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_152_u | Unstable | ¹⁵²Eu | Fermion | 63 | p | 89 | n | 3 | -1 | 151.921'744'534'0 | u | ~ 0 | % | ~ 0 | -72.894'497'000'0 | MeV | 8.226'624'000'0 | MeV | -1.941'400'000'0 | nm | 2.710'000'000'0 | b | 1.35E+1 | years | 427.482 | mega-seconds ( x⁶ ) | 72.100'000 | % | β+ | 852.068 | keV | ¹⁵²Sm | ¹⁵²Eu > [ 72.1 % , β+ , 852.068 keV ] > ¹⁵²Sm | β- | 1,819.710 | keV | ¹⁵²Gd | ¹⁵²Eu > [ , β- , 1,819.71 keV ] > ¹⁵²Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_153_s | Stable | ¹⁵³Eu | Boson | 63 | p | 90 | n | 5/2 | 1 | 152.921'230'339'0 | u | 52.190'000 | % | 79.809'590'113'9 | -73.373'467'000'0 | MeV | 8.228'740'000'0 | MeV | 1.533'000'000'0 | nm | 2.412'000'000'0 | b | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_154_u | Unstable | ¹⁵⁴Eu | Fermion | 63 | p | 91 | n | 3 | -1 | 153.922'979'237'0 | u | ~ 0 | % | ~ 0 | -71.744'378'000'0 | MeV | -71.744'378'000'0 | MeV | -2.005'000'000'0 | nm | 2.840'000'000'0 | b | 8.60E+0 | years | 271.386 | mega-seconds ( x⁶ ) | 100.000'000 | % | β- | 1,698.840 | keV | ¹⁵⁴Gd | ¹⁵⁴Eu > [ 100 % , β- , 1,698.84 keV ] > ¹⁵⁴Gd | ϵ | 717.220 | keV | ¹⁵⁴Sm | ¹⁵⁴Eu > [ , ϵ , 717.22 keV ] > ¹⁵⁴Sm | 100.000'000 | % | ¹⁵⁴Gd | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_155_u | Unstable | ¹⁵⁵Eu | Boson | 63 | p | 92 | n | 5/2 | 1 | 154.922'893'260'0 | u | ~ 0 | % | ~ 0 | -71.824'466'000'0 | MeV | 8.216'715'000'0 | MeV | 1.560'000'000'0 | nm | 2.340'000'000'0 | b | 4.76E+0 | years | 150.353 | mega-seconds ( x⁶ ) | 100.000'000 | % | β- | 252.660 | keV | ¹⁵⁵Gd | ¹⁵⁵Eu > [ 100 % , β- , 252.66 keV ] > ¹⁵⁵Gd | 100.000'000 | % | ¹⁵⁵Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_156_u | Unstable | ¹⁵⁶Eu | Fermion | 63 | p | 93 | n | 0 | 1 | 155.924'752'249'0 | u | ~ 0 | % | ~ 0 | -70.092'829'000'0 | MeV | 8.204'682'000'0 | MeV | - | - | 4.16E-2 | year | 1.312 | mega-seconds ( x⁶ ) | 100.000'000 | % | β- | 2,449.370 | keV | ¹⁵⁶Gd | ¹⁵⁶Eu > [ 100 % , β- , 2,449.37 keV ] > ¹⁵⁶Gd | 100.000'000 | % | ¹⁵⁶Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_157_u | Unstable | ¹⁵⁷Eu | Boson | 63 | p | 94 | n | 5/2 | 1 | 156.925'423'647'0 | u | ~ 0 | % | ~ 0 | -69.467'426'000'0 | MeV | 8.199'850'000'0 | MeV | 1.500'000'000'0 | nm | 2.600'000'000'0 | b | 1.73E-3 | year | 54.650 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 1,363.250 | keV | ¹⁵⁷Gd | ¹⁵⁷Eu > [ 100 % , β- , 1,363.25 keV ] > ¹⁵⁷Gd | 100.000'000 | % | ¹⁵⁷Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_158_u | Unstable | ¹⁵⁸Eu | Fermion | 63 | p | 95 | n | 1 | -1 | 157.927'845'302'0 | u | ~ 0 | % | ~ 0 | -67.211'669'000'0 | MeV | 8.184'759'000'0 | MeV | 1.440'000'000'0 | nm | 0.660'000'000'0 | b | 8.71E-5 | year | 2.750 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 3,485.100 | keV | ¹⁵⁸Gd | ¹⁵⁸Eu > [ 100 % , β- , 3,485.1 keV ] > ¹⁵⁸Gd | 100.000'000 | % | ¹⁵⁸Gd | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_159_u | Unstable | ¹⁵⁹Eu | Boson | 63 | p | 96 | n | 5/2 | 1 | 158.929'088'861'0 | u | ~ 0 | % | ~ 0 | -66.053'301'000'0 | MeV | 8.176'760'000'0 | MeV | 1.380'000'000'0 | nm | - | 3.45E-5 | year | 1.090 | kilo-seconds ( x³ ) | 100.000'000 | % | β- | 2,515.000 | keV | ¹⁵⁹Gd | ¹⁵⁹Eu > [ 100 % , β- , 2,515.0 keV ] > ¹⁵⁹Gd | 100.000'000 | % | ¹⁵⁹Tb | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_160_u | Unstable | ¹⁶⁰Eu | Fermion | 63 | p | 97 | n | 1 | -1 | 159.931'971'000'0 | u | ~ 0 | % | ~ 0 | -63.369'000'000'0 | MeV | 8.159'000'000'0 | MeV | - | - | 1.20E-5 | year | 379.800 | seconds ( x⁰ ) | 100.000'000 | % | β- | 4,580.000 | keV | ¹⁶⁰Gd | ¹⁶⁰Eu > [ 100 % , β- , 4,580.0 keV ] > ¹⁶⁰Gd | ? | % | ¹⁶⁰Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_161_u | Unstable | ¹⁶¹Eu | Boson | 63 | p | 98 | n | 5/2 | 1 | 160.933'680'000'0 | u | ~ 0 | % | ~ 0 | -61.777'000'000'0 | MeV | 8.149'000'000'0 | MeV | - | - | 8.24E-7 | year | 26.000 | seconds ( x⁰ ) | 100.000'000 | % | β- | 3,736.000 | keV | ¹⁶¹Gd | ¹⁶¹Eu > [ 100 % , β- , 3,736.0 keV ] > ¹⁶¹Gd | 100.000'000 | % | ¹⁶¹Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_162_u | Unstable | ¹⁶²Eu | Fermion | 63 | p | 99 | n | ? | 0 | 161.937'040'000'0 | u | ~ 0 | % | ~ 0 | -58.647'000'000'0 | MeV | 8.129'000'000'0 | MeV | - | - | 3.36E-7 | year | 10.600 | seconds ( x⁰ ) | 100.000'000 | % | β- | 5,640.000 | keV | ¹⁶²Gd | ¹⁶²Eu > [ 100 % , β- , 5,640.0 keV ] > ¹⁶²Gd | 100.000'000 | % | ¹⁶²Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_163_u | Unstable | ¹⁶³Eu | Boson | 63 | p | 100 | n | 5/2 | 1 | 162.939'210'000'0 | u | ~ 0 | % | ~ 0 | -56.626'000'000'0 | MeV | 8.116'000'000'0 | MeV | - | - | 1.90E-6 | year | 60.000 | seconds ( x⁰ ) | ? | % | β- | 4,862.000 | keV | ¹⁶³Gd | ¹⁶³Eu > [ ? % , β- , 4,862.0 keV ] > ¹⁶³Gd | ? | % | ¹⁶³Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_164_u | Unstable | ¹⁶⁴Eu | Fermion | 63 | p | 101 | n | ? | 0 | 163.942'990'000'0 | u | ~ 0 | % | ~ 0 | -53.104'000'000'0 | MeV | 8.095'000'000'0 | MeV | - | - | 6.34E-8 | year | 2.000 | seconds ( x⁰ ) | ? | % | β- | 6,642.000 | keV | ¹⁶⁴Gd | ¹⁶⁴Eu > [ ? % , β- , 6,642.0 keV ] > ¹⁶⁴Gd | ? | % | ¹⁶⁴Dy | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_165_u | Unstable | ¹⁶⁵Eu | Boson | 63 | p | 102 | n | 5/2 | 1 | 164.945'720'000'0 | u | ~ 0 | % | ~ 0 | -50.561'000'000'0 | MeV | 8.079'000'000'0 | MeV | - | - | 3.17E-8 | year | 1,000.000 | milliseconds ( x⁻³ ) | ? | % | β- | 5,906.000 | keV | ¹⁶⁵Gd | ¹⁶⁵Eu > [ ? % , β- , 5,906.0 keV ] > ¹⁶⁵Gd | ? | % | ¹⁶⁵Ho | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_166_u | Unstable | ¹⁶⁶Eu | Fermion | 63 | p | 103 | n | ? | 0 | 165.949'970'000'0 | u | ~ 0 | % | ~ 0 | -46.603'000'000'0 | MeV | 8.055'000'000'0 | MeV | - | - | 1.27E-8 | year | 400.000 | milli-seconds ( x⁻³ ) | ? | % | β- | 7,797.000 | keV | ¹⁶⁶Gd | ¹⁶⁶Eu > [ ? % , β- , 7,797.0 keV ] > ¹⁶⁶Gd | ? | % | ¹⁶⁶Er | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Isotope_063_eu_167_u | Unstable | ¹⁶⁷Eu | Boson | 63 | p | 104 | n | 5/2 | 1 | 166.953'210'000'0 | u | ~ 0 | % | ~ 0 | -43.585'000'000'0 | MeV | 8.037'000'000'0 | MeV | - | - | 6.34E-9 | year | 200.000 | milli-seconds ( x⁻³ ) | ? | % | β- | 7,117.000 | keV | ¹⁶⁷Gd | ¹⁶⁷Eu > [ ? % , β- , 7,117.0 keV ] > ¹⁶⁷Gd | ? | % | ¹⁶⁷Er |