Periodic Table Element Comparison: Compare Elements - Radium vs Strontium
Compare Radium and Strontium
Compare Radium and Strontium 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 Radium vs Strontium with most reliable information about their properties, attributes, facts, uses etc. You can compare Ra vs Sr on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
Name |
Atomic Number |
Atomic Symbol |
Atomic Weight |
Phase |
Color |
Classification |
Group in Periodic Table |
Group Name |
Period in Periodic Table |
Block in Periodic Table |
Electronic Configuration |
Melting Point |
Boiling Point |
Electronic Shell Structure |
CAS Number |
Neighborhood Elements |
Radium |
88 |
Ra |
226 |
Solid |
Silver |
alkaline earth metal |
2 |
beryllium family |
7 |
s |
[Rn] 7s2 |
700 °C |
1737 °C |
2, 8, 18, 32, 18, 8, 2 |
CAS7440-14-4 |
Neighborhood Elements of Radium |
Strontium |
38 |
Sr |
87.62 |
Solid |
Silver |
alkaline earth metal |
2 |
beryllium family |
5 |
s |
[Kr] 5s2 |
777 °C |
1382 °C |
2, 8, 18, 8, 2 |
CAS7440-24-6 |
Neighborhood Elements of Strontium |
History
History |
The element Radium was discovered by Pierre Curie in year 1898 in France. Radium derived its name from from the Latin radius, 'ray' |
The element Strontium was discovered by William Cruickshank (chemist) in year 1790 in United Kingdom. Strontium derived its name derived its name from from Strontian, a small town in Scotland |
Presence: Abundance in Nature and Around Us
N/A |
N/A |
N/A |
9.9×10-12% |
1×10-15% |
1×10-13% |
4×10-6% |
5×10-6% |
8.7e-06 |
0.00036 |
8.1e-06 |
4.6e-06 |
Crystal Structure and Atomic Structure
Atomic Radius |
Atomic Volume |
Covalent Radius |
Van der Waals Radius |
Neutron Cross Section |
Atomic Spectrum |
Lattice Constant |
Lattice Angle |
Space Group Name |
Space Group Number |
Crystal Structure |
N/A |
45.2 cm3 |
N/A |
N/A |
20 |
![]() |
514.8, 514.8, 514.8 pm |
π/2, π/2, π/2 |
Im_ 3m |
229 |
Body Centered Cubic ![]() |
219 pm |
33.315589353612 cm3 |
192 pm |
N/A |
1.2 |
![]() |
608.49, 608.49, 608.49 pm |
π/2, π/2, π/2 |
Fm_ 3m |
225 |
Face Centered Cubic ![]() |
Atomic and Orbital Properties
Atomic Number |
Number of Electrons (with no charge) |
Number of Protons |
Mass Number |
Number of Neutrons |
Shell structure (Electrons per energy level) |
Electron Configuration |
Valence Electrons |
Oxidation State |
Atomic Term Symbol (Quantum Numbers) |
Shell structure |
88 |
88 |
88 |
226 |
138 |
2, 8, 18, 32, 18, 8, 2 |
[Rn] 7s2 |
7s2 |
2 |
1S0 |
![]() |
38 |
38 |
38 |
87.62 |
49.62 |
2, 8, 18, 8, 2 |
[Kr] 5s2 |
5s2 |
1;2 |
1S0 |
![]() |
Isotopes - Nuclear Properties
Isotopes |
Naturally occurring stable
isotopes: None. |
Naturally occurring stable
isotopes: 84Sr, 86Sr, 87Sr, 88Sr. |
Chemical Properties: Ionization Energies and electron affinity
2 |
0.9 |
N/A |
509.3, 979 kJ/mol |
2 |
0.95 |
5.03 kJ/mol |
549.5, 1064.2, 4138, 5.5×103, 6910, 8760, 10230, 1.18×104, 1.56×104, 1.71×104 kJ/mol |
Physical Properties
Density |
Molar Volume |
Elastic Properties |
Young Modulus |
Shear Modulus |
Bulk Modulus |
Poisson Ratio |
Hardness - Tests to Measure of Hardness of Element |
Mohs Hardness |
Vickers Hardness |
Brinell Hardness |
Electrical Properties |
Electrical Conductivity |
Resistivity |
Superconducting Point |
Heat and Conduction Properties |
Thermal Conductivity |
Thermal Expansion |
Magnetic Properties |
Magnetic Type |
Curie Point |
Mass Magnetic Susceptibility |
Molar Magnetic Susceptibility |
Volume Magnetic Susceptibility |
Optical Properties |
Refractive Index |
Acoustic Properties |
Speed of Sound |
5 g/cm3 |
45.2 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
1×106 S/m |
1×10-6 m Ω |
N/A |
19 W/(m K) |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
2.63 g/cm3 |
33.315589353612 |
N/A |
6.1 GPa |
N/A |
0.28 |
1.5 MPa |
N/A |
N/A |
7.7×106 S/m |
1.3×10-7 m Ω |
N/A |
35 W/(m K) |
0.0000225 K-1 |
Paramagnetic |
N/A |
1.32×10-9 |
1.16×10-10 |
3.47×10-6 |
N/A |
N/A |
Thermal Properties - Enthalpies and thermodynamics
700 °C |
1737 °C |
N/A |
N/A |
8 kJ/mol |
125 kJ/mol |
N/A |
777 °C |
1382 °C |
N/A |
N/A |
8 kJ/mol |
137 kJ/mol |
N/A |
Regulatory and Health - Health and Safety Parameters and Guidelines
CAS Number |
RTECS Number |
DOT Hazard Class |
DOT Numbers |
EU Number |
NFPA Fire Rating |
NFPA Hazards |
NFPA Health Rating |
NFPA Reactivity Rating |
More |
AutoIgnition Point |
Flashpoint |
CAS7440-14-4 |
N/A |
N/A |
N/A |
EU231-122-4 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
CAS7440-24-6 |
N/A |
4.2 |
1383 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |