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The smallest particle of an element or compound capable of a stable, independent existence.

Latest Articles

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    Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.

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    In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.

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    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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Electrolytic Conduction

Conduction of electrical current by ions through a solution or pure liquid.

van der Waals' Equation

An equation of state that extends the ideal gas law to real gases by inclusion of two empirically determined parameters, which are different for different gases.

Exothermic

Describes processes that release heat energy.

Radiation

High energy particles or rays emitted during the nuclear decay processes.

Melting Point

The temperature at which liquid and solid coexist in equilibrium, also the freezing point.

Element

A substance that cannot be decomposed into simpler substances by chemical means.

Disproportionation Reactions

Redox reactions in which the oxidizing agent and the reducing agent are the same species.

Law of Conservation of Matter

There is no detectable change in the quantity of matter during an ordinary chemical reaction.

Electron Affinity

The amount of energy absorbed in the process in which an electron is added to a neutral isolated gaseous atom to form a gaseous ion with a 1- charge, has a negative value if energy is released.

Electron Configuration

Specific distribution of electrons in atomic orbitals of atoms or ions.