Antiparticles

For most particles, there is an antiparticle.  An antiparticle has the opposite charge and the same mass as its particle partner.  Since particles and antiparticles annihilate each other, it is well-known that there are many more particles than antiparticles.  Antiparticle played apart in the creation of matter in the early Universe.  They also are the cause of Black Hole Evaporation. Because of these unbalanced amounts, antiparticles are not found naturally.  They are engineered in a lab by destroying another particle.  Particles with a quark composition have an antiparticle that contains antiquarks.  Also, two antiprotons, two antineutrons, and two antielectrons (also called the positron) would produce an antihelium atom.  Antiparticles mirror most particles, and they are very similiar with most properties.