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The interaction of orbitals on different atoms in the same region of space.

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Alpha Particles

A helium nucleus.

Fractional Distillation

The process in which a fractioning column is used in distillation apparatus to separate components of a liquid mixture that have different boiling points.

Silicones

Polymeric organosilicon compounds, contain individual or cross-linked Si-O chains or rings in which some oxygens of SiO4 tetrahedra are replaced by other groups.

Structural Isomers

Compounds that contain the same number of the same kinds of atoms in different geometric arrangements.

Condensed States

The solid and liquid states.

Boron Hydrides

Binary compounds of boron and hydrogen.

Equivalence Point

The point at which chemically equivalent amounts of reactants have reacted.

Dumas Method

A method used to determine the molecular weights of volatile liquids.

Atomic Number


Integral number of protons in the nucleus, defines the identity of element.
 

Line Spectrum

An atomic emission or absorption spectrum.