Maeckes logo

<    1      2      3      4    >


Electron

Electrons are elementary particles with a negative electric charge with spin ½.

 


Explanation

The electron is the lightest electrically charged lepton. The corresponding anti particle is the positron. Electrons and positrons are fermions.

F E R M I O N S
L e p t o n s
E l e c t r o n s
e
electron
e+
positron

Electrons move in an atom. The atomic nucleus consists of protons and neutrons.

The elementary charge e is the electric charge of a single electron, or equivalently, the opposite of the electric charge of a single proton. One gram of hydrogen gas contains about 1024 protons, that is 3 000 000 000 000 000 000 000 000 quarks.

 


History

The electron was discovered in 1897 by the British physicist J. J. Thomson.


Deutsch   Español   Français   Nederlands   中文