Periodic Table Element Comparison: Compare Elements - Actinium vs Yttrium
Compare Actinium and Yttrium 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 Actinium vs Yttrium with most reliable information about their properties, attributes, facts, uses etc. You can compare Ac vs Y on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more. Actinium and Yttrium comparison table on more than 90 properties.
Actinium and Yttrium Comparison
Facts
Name | Actinium | Yttrium |
---|---|---|
Atomic Number | 89 | 39 |
Atomic Symbol | Ac | Y |
Atomic Weight | 227 | 88.90585 |
Phase at STP | Solid | Solid |
Color | Silver | Silver |
Metallic Classification | Actinide | Transition Metal |
Group in Periodic Table | group - | group 3 |
Group Name | scandium family | |
Period in Periodic Table | period 7 | period 5 |
Block in Periodic Table | f -block | d -block |
Electronic Configuration | [Rn] 6d1 7s2 | [Kr] 4d1 5s2 |
Electronic Shell Structure (Electrons per shell) | 2, 8, 18, 32, 18, 9, 2 | 2, 8, 18, 9, 2 |
Melting Point | 1323 K | 1799 K |
Boiling Point | 3473 K | 3618 K |
CAS Number | CAS7440-34-8 | CAS7440-65-5 |
Neighborhood Elements | Neighborhood Elements of Actinium | Neighborhood Elements of Yttrium |
History
Parameter | Actinium | Yttrium |
---|---|---|
History | The element Actinium was discovered by F. O. Giesel in year 1902 in France. Actinium derived its name from the Greek aktis, 'ray'. | The element Yttrium was discovered by J. Gadolin in year 1794 in Finland. Yttrium derived its name from Ytterby, Sweden. |
Discovery | F. O. Giesel (1902) | J. Gadolin (1794) |
Isolated | F. O. Giesel (1902) | G. Mosander (1842) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
Property | Actinium | Yttrium |
---|---|---|
Abundance in Universe | / | 7 / 0.1 |
Abundance in Sun | / | 10 / 0.1 |
Abundance in Meteorites | / | 1900 / 430 |
Abundance in Earth's Crust | / | 29000 / 6700 |
Abundance in Oceans | / | 0.013 / 0.0009 |
Abundance in Humans | / | - / - |
Crystal Structure and Atomic Structure
Property | Actinium | Yttrium |
---|---|---|
Atomic Volume | 22.5422 cm3/mol | 19.881 cm3/mol |
Atomic Radius | 195 pm | 212 pm |
Covalent Radius | - | 162 pm |
Van der Waals Radius | - | - |
Atomic Spectrum - Spectral Lines | ||
Emission Spectrum | ||
Absorption Spectrum | ||
Lattice Constant | 567, 567, 567 pm | 364.74, 364.74, 573.06 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
Property | Actinium | Yttrium |
---|---|---|
Atomic Number | 89 | 39 |
Number of Electrons (with no charge) | 89 | 39 |
Number of Protons | 89 | 39 |
Mass Number | 227 | 88.90585 |
Number of Neutrons | 138 | 50 |
Shell structure (Electrons per energy level) | 2, 8, 18, 32, 18, 9, 2 | 2, 8, 18, 9, 2 |
Electron Configuration | [Rn] 6d1 7s2 | [Kr] 4d1 5s2 |
Valence Electrons | 6d1 7s2 | 4d1 5s2 |
Oxidation State | 3 | 3 |
Atomic Term Symbol (Quantum Numbers) | 2D3/2 | 2D3/2 |
Shell structure |
Isotopes and Nuclear Properties
Actinium has 0 stable naturally occuring isotopes while Yttrium has 1 stable naturally occuring isotopes.
Parameter | Actinium | Yttrium |
---|---|---|
Known Isotopes | 206Ac, 207Ac, 208Ac, 209Ac, 210Ac, 211Ac, 212Ac, 213Ac, 214Ac, 215Ac, 216Ac, 217Ac, 218Ac, 219Ac, 220Ac, 221Ac, 222Ac, 223Ac, 224Ac, 225Ac, 226Ac, 227Ac, 228Ac, 229Ac, 230Ac, 231Ac, 232Ac, 233Ac, 234Ac, 235Ac, 236Ac | 76Y, 77Y, 78Y, 79Y, 80Y, 81Y, 82Y, 83Y, 84Y, 85Y, 86Y, 87Y, 88Y, 89Y, 90Y, 91Y, 92Y, 93Y, 94Y, 95Y, 96Y, 97Y, 98Y, 99Y, 100Y, 101Y, 102Y, 103Y, 104Y, 105Y, 106Y, 107Y, 108Y |
Stable Isotopes | - | Naturally occurring stable isotopes: 89Y |
Neutron Cross Section | 810 | 1.28 |
Neutron Mass Absorption | 0.079 | 0.0006 |
Chemical Properties: Ionization Energies and electron affinity
Property | Actinium | Yttrium |
---|---|---|
Valence or Valency | 3 | 3 |
Electronegativity | 1.1 Pauling Scale | 1.22 Pauling Scale |
Electron Affinity | - | 29.6 kJ/mol |
Ionization Energies | 1st: 499 kJ/mol 2nd: 1170 kJ/mol | 1st: 600 kJ/mol 2nd: 1180 kJ/mol 3rd: 1980 kJ/mol 4th: 5847 kJ/mol 5th: 7430 kJ/mol 6th: 8970 kJ/mol 7th: 11190 kJ/mol 8th: 12450 kJ/mol 9th: 14110 kJ/mol 10th: 18400 kJ/mol 11th: 19900 kJ/mol 12th: 36090 kJ/mol |
Physical Properties
Property | Actinium | Yttrium |
---|---|---|
Density | 10.07 g/cm3 | 4.472 g/cm3 |
Molar Volume | 22.5422 cm3/mol | 19.881 cm3/mol |
Elastic Properties | ||
Young Modulus | - | 64 |
Shear Modulus | - | 26 GPa |
Bulk Modulus | - | 41 GPa |
Poisson Ratio | - | 0.24 |
Hardness - Tests to Measure of Hardness of Element | ||
Mohs Hardness | - | - |
Vickers Hardness | - | - |
Brinell Hardness | - | 589 MPa |
Electrical Properties | ||
Electrical Conductivity | - | 1800000 S/m |
Resistivity | - | 5.59e-7 m Ω |
Superconducting Point | - | 1.3 |
Heat and Conduction Properties | ||
Thermal Conductivity | 12 W/(m K) | 17 W/(m K) |
Thermal Expansion | - | 0.0000106 /K |
Magnetic Properties | ||
Magnetic Type | - | Paramagnetic |
Curie Point | - | - |
Mass Magnetic Susceptibility | - | 6.66e-8 m3/kg |
Molar Magnetic Susceptibility | - | 5.921e-9 m3/mol |
Volume Magnetic Susceptibility | - | 0.0002978 |
Optical Properties | ||
Refractive Index | - | - |
Acoustic Properties | ||
Speed of Sound | - | 3300 m/s |
Thermal Properties - Enthalpies and thermodynamics
Property | Actinium | Yttrium |
---|---|---|
Melting Point | 1323 K | 1799 K |
Boiling Point | 3473 K | 3618 K |
Critical Temperature | - | - |
Superconducting Point | - | 1.3 |
Enthalpies | ||
Heat of Fusion | 14 kJ/mol | 11.4 kJ/mol |
Heat of Vaporization | 400 kJ/mol | 380 kJ/mol |
Heat of Combustion | - | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
Parameter | Actinium | Yttrium |
---|---|---|
CAS Number | CAS7440-34-8 | CAS7440-65-5 |
RTECS Number | - | RTECSZG2980000 |
DOT Hazard Class | - | 4.1 |
DOT Numbers | - | 3089 |
EU Number | - | - |
NFPA Fire Rating | - | 2 |
NFPA Health Rating | - | - |
NFPA Reactivity Rating | - | - |
NFPA Hazards | - | - |
AutoIgnition Point | - | - |
Flashpoint | - | - |
Compare With Other Elements
Compare Actinium and Yttrium with other elements of the periodic table.