rubidium (howard wood)
TRANSCRIPT
RbRubidium
by: Howard Daniel Wood
Properties of RubidiumAtomic Number- 37
Atomic Mass- 85.47
Melting Point- 312.2K
Boiling Point- 961K
Density- 1532 kg m^-3
Very soft, silvery-white metal
Click Here to see Rubidium react with water
Liquid at room temperature Click Here to see another reaction in water
Ignites spontaneously and reacts violently in water
History of RubidiumDiscovered in 1861 by R.W. Busen and G. Kirchhoff in Germany by spectroscopic examination of lepidolite
Rubidium gets its name from the Latin word rubidius, which translates to deep red, this a reference to its dark red lines under a spectroscope
Key Isotopes
Nuclide 85Rb 86Rb 87Rb
Atomic Mass 84.91 85.91 86.91
Natural
Abundance72.17% 0% 27.84%
Half-Life Stable 18.66 days5x10^11
years
Availability of Rubidium
23rd most abundant element in the Earth’s crust
Minerals such as lepidolite, leucite, and carnallite contain Rubidium
Rubidium can be bought in small quantities for around $25 per gram
Rubidium Compounds
Most common used rubidium compound is Rubidium Chloride
It is used to induce cells to take up DNA in biochemistry
Rubidium Hydroxide is another compound that is used to make other rubidium chemical processes
And Rubidium Carbonate is used in some optical classes
Uses of RubidiumThere are few uses outside of research for rubidium
There has been some research done in the development of thinner batteries
Has been prospected for a working fluid for vapor turbines and in thermoelectric generators
Used as a photocell component
Can be found in some special optical glasses
Its slight radioactivity has been used to find brain tumors, because it collects at the site of a tumor and not normal tissue
Works Cited
http://www.youtube.com/watch?v=0XLGopBovoI
http://www.youtube.com/watch?v=lpTHI1B0Zc8
http://www.hobart.k12.in.us/ksms/PeriodicTable/rubidium.htm
http://periodic.lanl.gov/elements/37.html
http://www.rsc.org/chemsoc/visualelements/pages/data/rubidium_data.html