Difference between revisions of "Osmium"
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'''Osmium''' is a Transition Metal in group 8. | '''Osmium''' is a Transition Metal in group 8. | ||
It has a Hexagonal crystalline structure. | It has a Hexagonal crystalline structure. | ||
− | This element has 7 stable isotopes: 184, , 187, 188, 189, 190, and 192. | + | This element has 7 stable isotopes: 184, 186, 187, 188, 189, 190, and 192. |
<BR/><BR/> | <BR/><BR/> | ||
Revision as of 14:07, 13 February 2007
Osmium | |
---|---|
Os | |
In situ availability: | |
Necessity: | |
Atomic number: | 76 |
Atomic mass: | 190.23 |
group: | 8 |
period: | 6 |
normal phase: | Solid |
series: | Transition Metals |
density: | 22.61 g/cm3 |
melting point: | 3306K, 3033°C, 5491°F |
boiling point: | 5285K, 5012°C, 9054°F |
Tc ← Ru → Rh | |
Re ← Os → Ir | |
Bh ← Hs → Mt | |
Atomic radius (pm): | 130 |
Bohr radius (pm): | 185 |
Covalent radius (pm): | 128 |
Van der Waals radius (pm): | |
ionic radius (pm): | (+4) 63 |
1st ion potential (eV): | 8.7 |
Electron Configuration | |
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d6 6s2 | |
Electrons Per Shell | |
2, 8, 18, 32, 14, 2 | |
Electronegativity: | 2.2 |
Electron Affinity: | 1.1 |
Oxidation states: | 2, 3, 4, 6, 8 |
Magnetism: | ? |
Crystal structure: | Hexagonal |
Osmium is a Transition Metal in group 8.
It has a Hexagonal crystalline structure.
This element has 7 stable isotopes: 184, 186, 187, 188, 189, 190, and 192.
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