Periodic Table Element Comparison: Compare Elements - Strontium vs Neodymium
Compare Strontium and Neodymium
Compare Strontium and Neodymium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Strontium vs Neodymium with most reliable information about their properties, attributes, facts, uses etc. You can compare Sr vs Nd on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
Name | Strontium | Neodymium |
Atomic Number | 38 | 60 |
Atomic Symbol | Sr | Nd |
Atomic Weight | 87.62 | 144.24 |
Phase at STP | Solid | Solid |
Color | Silver | Silver |
Metallic Classification | Alkaline Earth Metal | Lanthanide |
Group in Periodic Table | group 2 | group - |
Group Name | beryllium family | |
Period in Periodic Table | period 5 | period 6 |
Block in Periodic Table | s -block | f -block |
Electronic Configuration | [Kr] 5s2 | [Xe] 4f4 6s2 |
Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 8, 2 | 2, 8, 18, 22, 8, 2 |
Melting Point | 1050 K | 1294 K |
Boiling Point | 1655 K | 3373 K |
CAS Number | CAS7440-24-6 | CAS7440-00-8 |
Neighborhood Elements | Neighborhood Elements of Strontium | Neighborhood Elements of Neodymium |
History
Name | Strontium | Neodymium |
History | The element Strontium was discovered by W. Cruikshank in year 1787 in United Kingdom. Strontium derived its name from Strontian, a small town in Scotland. | The element Neodymium was discovered by C. A. von Welsbach in year 1885 in Austria. Neodymium derived its name from the Greek neos didymos meaning 'new twin'. |
Discovery | W. Cruikshank (1787) | C. A. von Welsbach (1885) |
Isolated | H. Davy (1808) | () |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
Name | Strontium | Neodymium |
Abundance in Universe | 40 / 0.6 | 10 / 0.09 |
Abundance in Sun | 50 / 0.7 | 3 / 0.02 |
Abundance in Meteorites | 8900 / 2000 | 510 / 70 |
Abundance in Earth's Crust | 360000 / 85000 | 33000 / 4800 |
Abundance in Oceans | 8100 / 570 | 0.0028 / 0.00012 |
Abundance in Humans | 4600 / 330 | - / - |
Crystal Structure and Atomic Structure
Name | Strontium | Neodymium |
Atomic Volume | 33.94 cm3/mol | 20.576 cm3/mol |
Atomic Radius | 219 pm | 206 pm |
Covalent Radius | 192 pm | - |
Van der Waals Radius | 249 pm | - |
Atomic Spectrum - Spectral Lines | ||
Emission Spectrum | ||
Absorption Spectrum | ||
Lattice Constant | 608.49, 608.49, 608.49 pm | 365.8, 365.8, 1179.9 pm |
Lattice Angle | π/2, π/2, π/2 | π/2, π/2, 2 π/3 |
Space Group Name | Fm_ 3m | P63/mmc |
Space Group Number | 225 | 194 |
Crystal Structure | Face Centered Cubic | Simple Hexagonal |
Atomic and Orbital Properties
Name | Strontium | Neodymium |
Atomic Number | 38 | 60 |
Number of Electrons (with no charge) | 38 | 60 |
Number of Protons | 38 | 60 |
Mass Number | 87.62 | 144.24 |
Number of Neutrons | 50 | 84 |
Shell structure (Electrons per energy level) | 2, 8, 18, 8, 2 | 2, 8, 18, 22, 8, 2 |
Electron Configuration | [Kr] 5s2 | [Xe] 4f4 6s2 |
Valence Electrons | 5s2 | 4f4 6s2 |
Oxidation State | 2 | 3 |
Atomic Term Symbol (Quantum Numbers) | 1S0 | 5I4 |
Shell structure |
Isotopes and Nuclear Properties
Strontium has 4 stable naturally occuring isotopes while Neodymium has 5 stable naturally occuring isotopes.
Name | Strontium | Neodymium |
Known Isotopes | 73Sr, 74Sr, 75Sr, 76Sr, 77Sr, 78Sr, 79Sr, 80Sr, 81Sr, 82Sr, 83Sr, 84Sr, 85Sr, 86Sr, 87Sr, 88Sr, 89Sr, 90Sr, 91Sr, 92Sr, 93Sr, 94Sr, 95Sr, 96Sr, 97Sr, 98Sr, 99Sr, 100Sr, 101Sr, 102Sr, 103Sr, 104Sr, 105Sr | 124Nd, 125Nd, 126Nd, 127Nd, 128Nd, 129Nd, 130Nd, 131Nd, 132Nd, 133Nd, 134Nd, 135Nd, 136Nd, 137Nd, 138Nd, 139Nd, 140Nd, 141Nd, 142Nd, 143Nd, 144Nd, 145Nd, 146Nd, 147Nd, 148Nd, 149Nd, 150Nd, 151Nd, 152Nd, 153Nd, 154Nd, 155Nd, 156Nd, 157Nd, 158Nd, 159Nd, 160Nd, 161Nd |
Stable Isotopes | Naturally occurring stable isotopes: 84Sr, 86Sr, 87Sr, 88Sr | Naturally occurring stable isotopes: 142Nd, 143Nd, 145Nd, 146Nd, 148Nd |
Neutron Cross Section | 1.2 | 49 |
Neutron Mass Absorption | 0.0005 | 0.011 |
Chemical Properties: Ionization Energies and electron affinity
Name | Strontium | Neodymium |
Valence or Valency | 2 | 3 |
Electronegativity | 0.95 Pauling Scale | 1.14 Pauling Scale |
Electron Affinity | 5.03 kJ/mol | 50 kJ/mol |
Ionization Energies | 1st: 549.5 kJ/mol 2nd: 1064.2 kJ/mol 3rd: 4138 kJ/mol 4th: 5500 kJ/mol 5th: 6910 kJ/mol 6th: 8760 kJ/mol 7th: 10230 kJ/mol 8th: 11800 kJ/mol 9th: 15600 kJ/mol 10th: 17100 kJ/mol 11th: 31270 kJ/mol | 1st: 533.1 kJ/mol 2nd: 1040 kJ/mol 3rd: 2130 kJ/mol 4th: 3900 kJ/mol |
Physical Properties
Name | Strontium | Neodymium |
Density | 2.63 g/cm3 | 7.01 g/cm3 |
Molar Volume | 33.94 cm3/mol | 20.576 cm3/mol |
Elastic Properties | ||
Young Modulus | - | 41 |
Shear Modulus | 6.1 GPa | 16 GPa |
Bulk Modulus | - | 32 GPa |
Poisson Ratio | 0.28 | 0.28 |
Hardness - Tests to Measure of Hardness of Element | ||
Mohs Hardness | 1.5 MPa | - |
Vickers Hardness | - | 343 MPa |
Brinell Hardness | - | 265 MPa |
Electrical Properties | ||
Electrical Conductivity | 7700000 S/m | 1600000 S/m |
Resistivity | 1.3e-7 m Ω | 6.4e-7 m Ω |
Superconducting Point | - | - |
Heat and Conduction Properties | ||
Thermal Conductivity | 35 W/(m K) | 17 W/(m K) |
Thermal Expansion | 0.0000225 /K | 0.0000096 /K |
Magnetic Properties | ||
Magnetic Type | Paramagnetic | Paramagnetic |
Curie Point | - | - |
Mass Magnetic Susceptibility | 1.32e-9 m3/kg | 4.8e-7 m3/kg |
Molar Magnetic Susceptibility | 1.16e-10 m3/mol | 6.9235e-8 m3/mol |
Volume Magnetic Susceptibility | 0.00000347 | 0.0033648 |
Optical Properties | ||
Refractive Index | - | - |
Acoustic Properties | ||
Speed of Sound | - | 2330 m/s |
Thermal Properties - Enthalpies and thermodynamics
Name | Strontium | Neodymium |
Melting Point | 1050 K | 1294 K |
Boiling Point | 1655 K | 3373 K |
Critical Temperature | - | - |
Superconducting Point | - | - |
Enthalpies | ||
Heat of Fusion | 8 kJ/mol | 7.1 kJ/mol |
Heat of Vaporization | 137 kJ/mol | 285 kJ/mol |
Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
Name | Strontium | Neodymium |
CAS Number | CAS7440-24-6 | CAS7440-00-8 |
RTECS Number | - | RTECSQO8575000 |
DOT Hazard Class | 4.2 | - |
DOT Numbers | 1383 | - |
EU Number | - | - |
NFPA Fire Rating | - | - |
NFPA Health Rating | - | - |
NFPA Reactivity Rating | - | - |
NFPA Hazards | - | - |
AutoIgnition Point | - | - |
Flashpoint | - | - |