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Arbitrary numbers that can be used as mechanical aids in writing formulas and balancing equations, for single- atom ions they correspond to the charge on the ion, more electronegative atoms are assigned negative oxidation numbers (also called Oxidation states).

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Condensed States

The solid and liquid states.

Double Bond

Covalent bond resulting from the sharing of four electrons (two pairs) between two atoms.

Spectator Ions

Ions in a solution that do not participate in a chemical reaction.

Ampere

Unit of electrical current, one ampere equals one coulomb per second.

 

Creating Malachite egg

One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but effective and visual, and as a result we will get something beautiful.

Amino Acid

Compound containing both an amino and a carboxylic acid group.The --NH2 group.

Gamma Ray

High energy electromagnetic radiation. A highly penetrating type of nuclear radiation similar to x-ray radiation, except that it comes from within the nucleus of an atom and has a higher energy. Energywise, very similar to cosmic ray except that cosmic rays originate from outer space.

Chemical Bonds

The attractive forces that hold atoms together in elements or compounds.

Amine Complexes

Complex species that contain ammonia molecules bonded to metal ions.

Levorotatory

Refers to an optically active substance that rotates the plane of plane polarized light counterclockwise, also called levo.