Sm-149 Isotope

sm-149 isotope sm-149 enriched sm-149 abundance sm-149 atomic mass sm-149

Sm-149 Isotope Information and Examples of Enriched Sm-149 Applications:

Samarium-149 isotope (Sm-149 isotope, 149Sm isotope)

  • Sm-149 isotope is used for polarizing thermal neutron beams;
  • Sm-149 isotope is used for research in nuclear physics;

Sm-149 isotope is available to order from BuyIsotope.com in Sm-149 oxide (Sm2O3) chemical form. Please contact us via request a Sm-149 quote BuyIsotope.com to order Sm-149 isotope, to get Sm-149 price and to buy Sm-149 isotope.

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Sm-149 Safety Data Sheet (SDS) in oxide form - Download pdf file
Download Sm-149 SDS in oxide form

Properties of Sm-149 Isotope:

Properties of Sm-149 Isotope:SM-149
Natural Abundance (%)13.82
Atomic Mass (Da)148.9171847
Relative Isotopic Mass148.9171847
Neutron Number (N)87
Atomic Number (Z)62
Mass Number (A)149
Nucleon Number (A)149
Proton Number (Z)62
Half-lifeStable
Spin3.5
Quadrupole Moment0.078
g-factor (g value)-0.1908
Group
Period6
Electron Configuration Blockf
Melting Point (K)1345
Boiling Point (K)2173
Specific Heat0.18
Heat of Formation206.7
Thermal Conductivity13.3
Dipole Polarizability 192
Electron Affinity (kJ/mole)0.162
Electronegativity (Pauling scale)1.17
Atomic Radius (pm)180.4с
Covalent Radius (pm)185
VDW Radius (pm)271
Lattice Constant9
Crystal StructureRHL
Jmol color#8fffc7

Sm-149 Information

Samarium is a moderately hard silvery metallic element, belongs to the lanthanoids. Totally samarium has 38 isotopes. 7 of them are natural ones, 5 of which are stable. Sm-147 is the natural radioisotope, and it has a half-life of 1.06*10^11 years. Samarium is used for making special alloys needed in the production of nuclear reactors. This element is used as a neutron absorber too. Small quantities of samarium oxide is used in special optical glasses. The largest use of the element is its ferromagnetic alloy which produces permanent magnets that are five times stronger than magnets produced by any other material. Samarium was discovered by Francois Lecoq de Boisbaudran in 1879.

Samarium is used in the electronics and ceramics industries. Samarium is easily magnetized and very difficult to demagnetize. This suggests its important future applications in solid-state and superconductor technologies.

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FAQ about Sm-149 Isotope:

What is Sm-149 isotope natural abundance?
Answer: 13.820 %

What is atomic mass for Sm-149 isotope?
Answer: 148.91718 Da

What is isotopic mass for Sm-149 isotope?
Answer: 148.91718

How many neutrons does Sm-149 isotope have?
Answer: 87

How many protons does Sm-149 isotope have?
Answer: 62

How many electrons does Sm-149 isotope have?
Answer: 62

What is atomic number for Sm-149 isotope?
Answer: 62

Is Sm-149 isotope stable?
Answer: Yes

Is Sm-149 isotope radioactive?
Answer: No

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