A nuclear reactor that produces more fissionable nuclear fuel than it consumes.
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Diamonds Are Forever
Diamonds are still a girl's best friend, right? We love the shiny gems. They are the most popular rocks sold today. But what exactly are they, anyway? Where do they come from? What else are they used for?
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Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
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Ozone
We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.
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Features of the Scanning Tunneling Microscope
The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...
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Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
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Periodic Law
The properties of the elements are periodic functions of their atomic numbers.
Metalloids
Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.
Alkaline Earth Metals
Group IIA metals
yttria
Y2O3: A white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.
Calorimeter
A device used to measure the heat transfer between system and surroundings.
Nonpolar Bond
Covalent bond in which electron density is symmetrically distributed.
Exothermic
Describes processes that release heat energy.
Dry Cells
Ordinary batteries (voltaic cells) for flashlights. radios, and so on, many are Leclanche cells.
Covalent Compounds
Compounds containing predominantly covalent bonds.
Mother Nuclide
Nuclide that undergoes nuclear decay.
