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At constant temperature and pressure, the volumes of reacting gases (and any gaseous products) can be expressed as ratios of small whole numbers.

 

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Ketone

Compound in which a carbonyl group is bound to two alkyl or two aryl groups, or to one alkyl and one aryl group.

Atomic Radius

Radius of an atom.

Gem-dimethyl group

Two methyl groups of the same carbon atom.

Chemistry is a familiar school subject

Everyone liked to observe the reaction of reagents. But few know interesting facts about chemistry, which we will discuss in this article.

Chemical Change

A change in which one or more new substances are formed.

Law of Conservation of Energy

Energy cannot be created or destroyed, it may be changed from one form to another.

Ionic Geometry

The arrangement of atoms (not lone pairs of electrons) about the central atom of a polyatomic ion.

Isomers

Different substances that have the same formula.

Band

A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.

Aufbau ('building up') Principle

Describes the order in which electrons fill orbitals in atoms.