Get the Facts About the Element Rubidium

Get the Facts About the Element Rubidium

Physicists create mind-bending 'negative mass' that accelerates backwards and could help explain black holes - A rubidium metal sample

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Women's Dr. Martens Pascal Combat Boots - New NWT

Women's Dr. Martens Pascal Combat Boots - New New without box. Please note: small mark on the inside of shoe as seen in last photo. Not visible from outside of shoe. Women's size 10. Pascal 8 Eye Lead Virginia boots by Dr. Martens. Soft, fine-grained nappa leather upper. Air-cushion sole with tread pattern for good impact absorption and slip resistance. Sole is resistant to oil, fat, acid, petrol and alkali. Goodyear welt construction for durability. Perforated footbed. 8 metal eyelets with…

Hipster Science : The Alkali Metals

Hipster Science : The Alkali Metals

Sodium is one of the alkali metals. - Justin Urgitis, wikipedia.org

Properties of Alkali Metals

Sodium is one of the alkali metals. - Justin Urgitis, wikipedia.org

LITHIUM. Ea alkali metal has a specific, characteristic flame color, caused by diff in energy among valence shells...which corresponds to wavelengths of visible light. When added to flame, outer electrons r excited to higher-energy orbitals,which then relax back to lower-energy, emitting energy in light form. Diff light colors depend on how much energy or how far electron falls to a lower energy level. Alkali metals' bright flame colors make them useful in fireworks.

LITHIUM. Ea alkali metal has a specific, characteristic flame color, caused by diff in energy among valence shells...which corresponds to wavelengths of visible light. When added to flame, outer electrons r excited to higher-energy orbitals,which then relax back to lower-energy, emitting energy in light form. Diff light colors depend on how much energy or how far electron falls to a lower energy level. Alkali metals' bright flame colors make them useful in fireworks.

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