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

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Explosive

A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

Henry's Law

The pressure of the gas above a solution is proportional to the concentration of the gas in the solution.

Nuclear Reaction

Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

Catenation

Bonding of atoms of the same element into chains or rings.
The bonding together of atoms of the same element to form chains.
The ability of an element to bond to itself.

Salt Bridge

A U-shaped tube containing electrolyte, which connects two half-cells of a voltaic cell.

Heat of Fusion

The amount of heat required to melt one gram of solid at its melting point with no change in temperature. Usually expressed in J/g. The molar heat of fusion is the amount of heat required to melt one mole of a solid at its melting point with no change in temperature and is usually expressed in kJ/mol.

Carbanion

An organic ion carrying a negative charge on a carbon atom.

Radioactivity

The spontaneous disintegration of atomic nuclei.

Voltage

Potential difference between two electrodes, a measure of the chemical potential for a redox reaction to occur.

Single Bond

Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.