Search results
Results from the WOW.Com Content Network
Element 125, unbipentium, a predicted chemical element; see Extended periodic table § Superactinides Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination.
Multimedia testing can be used [109] alongside flashcards as a method of retrieval practice but removing cards too early can result in lower long term retention. [110] Individuals may not correctly interpret the outcome of practice cards [ 111 ] contributing to dropped cards which impact future retrieval attempts [ 112 ] therefore resulting in ...
In nuclear energy studies, xenon is used in bubble chambers, [188] probes, and in other areas where a high molecular weight and inert chemistry is desirable. A by-product of nuclear weapon testing is the release of radioactive xenon-133 and xenon-135 .
Iodine-125 is a radioactive isotope of iodine that decays by electron capture with a physical half-life of 60.14 days. The biological half-life in normal individuals for iodine (125 I) human albumin has been reported to be approximately 14 days. Its radioactivity is excreted almost exclusively via the kidneys.
In thermodynamics, a critical point (or critical state) is the end point of a phase equilibrium curve. One example is the liquid–vapor critical point, the end point of the pressure–temperature curve that designates conditions under which a liquid and its vapor can coexist.
The chemistry of plutonium was found to resemble uranium after a few months of initial study. [42] Early research was continued at the secret Metallurgical Laboratory of the University of Chicago . On August 20, 1942, a trace quantity of this element was isolated and measured for the first time.
Barometer A device for measuring pressure. Battery Electrochemical cells that transform chemical energy into electricity. Base In chemistry, bases are substances that, in aqueous solution, release hydroxide (OH −) ions, are slippery to the touch, can taste bitter if an alkali, [50] change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, promote ...
Chemistry AR apps allow students to visualize and interact with the spatial structure of a molecule using a marker object held in the hand. [150] Others have used HP Reveal, a free app, to create AR notecards for studying organic chemistry mechanisms or to create virtual demonstrations of how to use laboratory instrumentation. [ 151 ]