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An instrument that measures the charge-to-mass ratio of charged particles.

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Functional Group

A group of atoms that represents a potential reaction site in an organic compound.

Density

Density is the ratio b/w Mass and Volume: D=M/V

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.

Dipole Moment

The product of the distance separating opposite charges of equal magnitude of the charge, a measure of the polarity of a bond or molecule, a measured dipole moment refers to the dipole moment of an entire molecule.

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.

Two chemistry egg tricks

The French have a saying: "You cannot cook an omelet without breaking eggs."Chemists hearing this proverb totally disagree. There is nothing easier than cleaning an egg without breaking its shell.
Probably our readers have already guessed how to do this, as it’s known that the hard shell of the egg is carbon dioxide, like chalk and marble.

Ore

A natural deposit containing a mineral of an element to be extracted.

Lead Storage Battery

Secondary voltaic cell used in most automobiles.

Corrosion

Oxidation of metals in the presence of air and moisture.

Hydrolysis

The reaction of a substance with water or its ions.