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Samarium-Anti
Samarium
Samarium is named after the mineral samarskite.
Samarium (Sm) Properties |
ASamarium (ASm)
Properties 1/ |
Nuclear (62 protons/electrons)
- Atomic Number: 62
- Atomic Mass: 150.36
- Atomic Energy: 0.224 Ergs
- Group: 3; Period: 6
- Family: Rare Earth:
Lanthanide Series
- Bonding Radius: 1.62 Angstroms
- Atomic Radius: 2.59 Angstroms
- Atomic Volume: 19.95 cm3mol-1
- 36
Isotopes: 130Sm
to 165Sm
- Stable Isotopes: 144Sm,
147Sm, 148Sm, 149Sm, 150Sm,
152Sm, 154Sm,
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Nuclear (62 Aprotons/positrons)
- Atomic Number: 62
- Atomic Mass: 150.36
- Atomic Energy: 0.224 Ergs
- Group: 3; Period: 6
- Family: Rare Earth:
Lanthanide Series
- Bonding Radius: 1.62 Angstroms
- Atomic Radius: 2.59 Angstroms
- Atomic Volume: 19.95 cm3mol-1
- 36 AIsotopes: 130ASm
to 165ASm
- Stable AIsotopes: 144ASm,
147ASm, 148ASm, 149ASm, 150ASm,
152ASm, 154ASm,
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Physical
- Silver colored metal
- Density: 7.54 g cm-3
- Melting Point: 1,072 oC
- Boiling Point: 1,900 oC
- Specific Heat: 0.20 J g-1 K-1
- Heat of Vaporization: 166.4 kJ mol-1
- Heat of Fusion: 8.63 kJ mol-1
- Electrical Conductivity: 0.00956 106 cm-1 Ohm-1
- Thermal Conductivity: 0.133 W cm-1 K-1
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Physical
- Silver colored metal
- Density: 7.54 g/cm-3
- Melting Point: 1,072 oC
- Boiling Point: 1,900 oC
- Specific Heat: 0.20 J g-1 K-1
- Heat of Vaporization:166.4 kJ mol-1
- Heat of Fusion: 8.63 kJ mol-1
- Electrical Conductivity: 0.00956 106 cm-1 Ohm-1
- Thermal Conductivity: 0.133 W cm-1 K-1
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Chemical
- Valance Number: +2,+3
- Electron Configuration: 2,8,18,24,8,2
- Electronegativity: 1.17
- 1st Ionization Potential: 5.6 Volts
- 2nd Ionization Potential: 11.1 Volts
- 3rd Ionization Potential: 23.4 Volts
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Chemical
- Valance Number: -2,-3
- Positron Configuration: 2,8,18,24,8,2
- Positronpositivity: 1.17
- 1st Ionization Potential: 5.6 Volts
- 2nd Ionization Potential: 11.1 Volts
- 3rd Ionization Potential: 23.4 Volts
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Identified by Paul Emile Lecoq de
Boisbaudran, France, on 1879.
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Identified by Norm Hansen in 2001
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1/ Superscript
A
before the element/symbol indicates the
element is antimatter.
150ASm is an AntiSamarium
element with an atomic mass of 150.
See Rosetta Stone for Matter &
Antimatter Definitions |
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