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Cation

An atom or group of atoms that has a positive electric charge and these are formed when an atom or group of atoms loses electrons.

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cation
Energy; Nuclear energy

A positively charged ion.

cation
Natural environment; Coral reefs

A particle that carries a positive electrical charge. The cation gets this positive charge from losing negatively charged electrons.

cation
Chemistry; Electrochemistry

An atom or group of atoms that has a positive electric charge and these are formed when an atom or group of atoms loses electrons.

cation
Biotechnology; Genetic engineering

A positively charged ion; opposite is anion .

cation
Legal services; DNA forensics

Positively charged ion. (e.g., K+, Na+, NH4+)

cation
Materials science; Corrosion engineering

A positively charged ion that migrates through the electrolyte toward the cathode under the influence of a potential gradient. See also anion and ion.

anode
Chemistry; Electrochemistry

The negative electrode in an electric cell, such as battery, that creates its own electricity.

battery
Chemistry; Electrochemistry

A device that changes one form of energy into another. Common household batteries change the energy that exists in a paste like mixture of dry chemicals into electric current.

charge
Chemistry; Electrochemistry

Property of all particles of matter that causes them to be attracted to or pushed away from other particles.

British thermal unit
Chemistry; Electrochemistry

A unit used to measure heat. Each Btu is equal to the amount of heat that is needed to raise the temperature of one pound of water by one degree.

Davy
Chemistry; Electrochemistry

British scientist who was one of the first people to study the relationship between electricity and chemical reactions.

ionize
Chemistry; Electrochemistry

To change the electric charge of an atom by adding or removing an electron is called as ionizing that atom.

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