Atoms consist of nuclei and electrons. Atomic nucleus composed / made up of protons and neutrons. The infiltration of atomic particles
Electron
Particle
|
Inventor
(Years) |
Period
|
|
Kg
|
Sma
|
||
Elektron
|
JJ Thomson
(1897)
|
9,1095x10-31
|
5,4859x10-4
|
Netron
|
J Chawick
(1932)
|
1,6749x10-27
|
1,0087
|
Proton
|
E Goldstein
(1886)
|
1,6726x10-27
|
1,0073
|
Electrons are subatomic elementary particle which was first discovered. Electrons are found by using glass tubes which are very low pressure which is composed by:
• metal plate as an electrode at the end of the tube
• The cathode electrode to the negative pole and the anode electrode to the positive pole
Electric high pressure in the stream through a metal plate resulted in a light that flows from the cathode to the anode is called a cathode ray
The existence of a cathode ray tube to make the dark. Cathode rays are invisible to the eye but its presence was detected through a glass tube to glow due to a conflict with a glass cathode ray tube glass. The properties of cathode rays:
• cathode rays are produced due to high pressure electric current passing through the metal plate
• cathode rays went straight toward the anode
• cathode ray fluorescence effects (glow) so that its presence is detected
• cathode rays are negatively charged so that it can been turned by an electric field and magnetic field
• cathode rays are generated is independent of the material for the metal plate
The properties that support the resulting cathode ray cathode ray causes were classified as atoms and elementary particles called electrons. Joseph Johnthomson subsequently conducted a study to determine the electron charge price comparison and its time (e / m).
The results showed that cathode rays can been turned by an electric field and magnetic field. Diversion allows the measurement of the radius of curvature of the right to charge a price comparison electron and its time can be set at 1.76 x 108 coulumb / gram
Robert ownership in 1909 conducted a study using electron charge determination of oil drops. Research shows that oil drops can catch as many as one or more electrons. Ownership further found that the charge on oil drops consecutive
IX (-1,6,10-19), 2x (-1,6,10-15), 3x (-1,6,10-19) and so on