To any particle having a rest mass, in the nature there corresponds her antiparticle.
Thus they have identical:

• A rest mass,
• The physical size,
• Quantity of an electrical charge of opposite polarity,
• Quantity of a moment of magnet,
• Quantity of a spin,
• A medial lifetime.

Antiparticles for fundamental particles (i.e. for leptons):

Particle	Antiparticle
Electron .  Electronic neutrino .  Muonic neutrino .	Positron .  Electronic antineutrino .  Muonic antineutrino .

Antiparticles for composite particles:

   To create an antiparticle corresponding a composite particle, in last it is enough to exchange of all leptons with antileptons and to change a direction of their orbital motion on opposite.