Unit 11 conduction in liquid gases

What is the negative terminal of a power source called?

Cathode

salts such as sodium chlorine or magnesium chloride is mixed with pure water it becomes a ?

Conductor

Three basic substance that can be used to produce ionization in a liquid?

salt acids alkalies

Conduction in a liquid depends on the movement of ___?

movement of charged atoms called ions

Atoms that have a gained extra electrons are known as

negative ions

What is the positive terminal of a power source called?

Anode

Two factors determine the amount of voltage required to cause conduction in a gasfilled envelope.

1 Atmospheric pressure-ionized more easily when in low pressure 2 Type of gas

An ion is a?

A charged atom

What other compounds besides salt can be used to promote conduction in a liquid? Also known as ?

Acids, Alkalies Electrolytes

Whats the most important factor in the ionization of a gas?

Electron impact. (Electrons impact frees other electrons from gas molecules.)

Conduction in a liquid depends on the moment of ?

Ions

Pure water is ?

Nonconducting

Atoms that have a deficiency of electrons are known as

Positive ions

One of the most useful ion compounds is?

Sulfuric acid ( H2SO4)

what is ionization potential?

The amount of voltage an electron must possess to cause ionization.

What determines the thickness of the coating during an electroplating process?

The length of time the process is permitted to continue.

what determines the density of the molecules in a gas environment?

The pressure inside the tube (high pressure the electron travels a short distance, cant gain enough potential to cause ionization.) (low-pressure electrons can travel a greater distance an attain ionization.)

What is electrolysis?

The process of separating elements electrically. (removing oxygen ions from aluminum oxide to create Aluminum ions and then become Aluminum atoms.)

What is holding a sulfate ion together?

The two extra electrons. H20 + H2SO4 molecules separate into ions H+,H+, and So4--. Hydrogen atoms lost its electrons and now is positive the SO4-- is called a sulfate ion and the two electrons lost by the hydrogen atoms are connected to the sulfur atom and four oxygen.

What determines the color of the light emitted by a gas filled tube?

The type of gas.

A good example of how ionization occurs can be seen by ?

combination of two atoms, magnesium(2ve) and chlorine(7ve).

Name two factors that determine the speed an electron attains inside a gas environment?

is proportional to the applied voltage and the distance it travels before striking the gas molecule.

Electroplating

is the process of depositing atoms of one type of metal on another.

an example of metallic salt form ?

when magnesium is heated in the presence of chlorine gas, a magnesium atom combines with two chlorine atoms to form metallic salt = magnesium chloride