Difference between revisions of "Argon"
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Revision as of 20:20, 14 March 2007
| Argon | |
|---|---|
| Ar | |
| In situ availability: | |
| Necessity: | |
| Atomic number: | 18 |
| Atomic mass: | 39.948 |
| group: | 18 |
| period: | 3 |
| normal phase: | Gas |
| series: | Noble gases |
| density: | 1.784 g/L |
| melting point: | 83.80K, -189.35°C, -308.83°F |
| boiling point: | 87.30K, -185.85°C, -302.53°F |
| F ← Ne → N/A | |
| Cl ← Ar → K | |
| Br ← Kr → N/A | |
| Atomic radius (pm): | 71 |
| Bohr radius (pm): | 71 |
| Covalent radius (pm): | 97 |
| Van der Waals radius (pm): | 188 |
| ionic radius (pm): | - |
| 1st ion potential (eV): | 15.76 |
| Electron Configuration | |
| 1s2 2s2 2p6 3s2 3p6 | |
| Electrons Per Shell | |
| 2, 8, 8 | |
| Electronegativity: | |
| Electron Affinity: | Unstable anion |
| Oxidation states: | - |
| Magnetism: | Nonmagnetic |
| Crystal structure: | Face centered cubic |
Argon is a Noble gas in group 18.
It has a Face centered cubic crystalline structure.
This element has 3 stable isotopes: 36, 38, and 40.
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