The amount of heat required to raise the temperature of one gram of substance one degree Celsius.
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The most expensive metal in the world
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Interesting facts about metals
Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.
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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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Diamonds Are Forever
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Capillary
A tube having a very small inside diameter.
Boron Hydrides
Binary compounds of boron and hydrogen.
Chemical Periodicity
The variations in properties of elements with their position in the periodic table.
Ketone
Compound in which a carbonyl group is bound to two alkyl or two aryl groups, or to one alkyl and one aryl group.
Polar Bond
Covalent bond in which there is an unsymmetrical distribution of electron density.
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 device is based on a complex process of "tunneling" electrons between the material and the tip of a probe.
Bomb Calorimeter
A device used to measure the heat transfer between system and surroundings at constant volume.
ytterbium
A rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb, at. wt.: 173.04, at. no.: 70, sp. gr.: 6.96. Cf."rare-earth element."
Associated Ions
Short-lived species formed by the collision of dissolved ions of opposite charges.
Anode
In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.
