Nuclide that undergoes nuclear decay.
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The most expensive metal in the world
Do you think the most expensive metal is gold? No! On earth there are more valuable metals. But we need to divide the value of metals that occur in nature, and metals - isotopes, which are obtained in special laboratories. Let’s look at natural metals first.
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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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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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Chemistry of the sky
Chemistry can teach us about the composition of celestial bodies and determine their age.
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Use of diamonds
Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...
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xylic acid
Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.
Melting Point
The temperature at which liquid and solid coexist in equilibrium, also the freezing point.
Electromotive Series
The relative order of tendencies for elements and their simple ions to act as oxidizing or reducing agents, also called the activity series.
Tyndall Effect
The scattering of light by colloidal particles.
Monoprotic Acid
Acid that can form only one hydronium ion per molecule, may be strong or weak. Acid that contains one ionizable hydrogen atom per formula unit.
Supercooled Liquids
Liquids that, when cooled, apparently solidify but actually continue to flow very slowly under the influence of gravity e.g glass.
Supercritical Fluid
A substance at temperature above its critical temperature.
Electronic Geometry
The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.
Structural Isomers
Compounds that contain the same number of the same kinds of atoms in different geometric arrangements.
Supersaturated Solution
A solution that contains a higher than saturation concentration of solute, slight disturbance or seeding causes crystallization of excess solute.
