Difference between revisions of "Radium"
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| − | {{Element | + | {{Element | |
name=Radium | | name=Radium | | ||
symbol=Ra | | symbol=Ra | | ||
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[[Category:Nonmagnetic Elements]] | [[Category:Nonmagnetic Elements]] | ||
[[Category:Solids]] | [[Category:Solids]] | ||
| − | [[Category:Alkaline | + | [[Category:Alkaline Earth Metals]] |
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| + | |||
| + | Radium has a boiling point of 1140 degrees Celcius. | ||
| + | Radium has a melting point of 700 degress Celcius. | ||
| + | Radium's Normal phase is SOLID. | ||
| + | The name Radium comes from the latin root Radius meaning Ray. | ||
| + | Radium is a metal. | ||
| + | radium was discovered by Madame Marie Curie in 1898. | ||
Latest revision as of 11:41, 9 October 2011
| Radium | |
|---|---|
| Ra | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 88 |
| Atomic mass: | [226] |
| group: | 2 |
| period: | 7 |
| normal phase: | Solid |
| series: | Alkaline earth metals |
| density: | 5.5 g/cm3 |
| melting point: | 973K, 700°C, 1292°F |
| boiling point: | 2010K, 1737°C, 3159°F |
| Cs ← Ba → La | |
| Fr ← Ra → Ac | |
| N/A ← N/A → N/A | |
| Atomic radius (pm): | 215 |
| Bohr radius (pm): | |
| Covalent radius (pm): | |
| Van der Waals radius (pm): | |
| ionic radius (pm): | (+2) 162 |
| 1st ion potential (eV): | 5.28 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 7s2 | |
| Electrons Per Shell | |
| 2, 8, 18, 32, 18, 8, 2 | |
| Electronegativity: | 0.9 |
| Electron Affinity: | - |
| Oxidation states: | 2 |
| Magnetism: | Nonmagnetic |
| Crystal structure: | Body centered cubic |
Radium is a Alkaline earth metal in group 2.
It has a Body centered cubic crystalline structure.
It does not have any isotopes considered to be natural. Its longest-lived known isotope has an atomic number of 226.
This element has no stable isotopes.
This article is an automatically generated stub. As such it may contain serious errors.
You can help Lunarpedia by expanding or correcting it. |
Radium has a boiling point of 1140 degrees Celcius.
Radium has a melting point of 700 degress Celcius.
Radium's Normal phase is SOLID.
The name Radium comes from the latin root Radius meaning Ray.
Radium is a metal.
radium was discovered by Madame Marie Curie in 1898.
