Antimatter
In simple terms, antimatter is the exact opposite of normal matter. In the Standard Model of Physics, every fundamental particle in the universe (like an electron or a proton) has a corresponding twin particle called an antiparticle. When these antiparticles combine, they form antimatter.
Key Characteristics
- Same Mass, Opposite Charge: An antiparticle possesses the exact same mass and physical weight as its normal matter twin. However, it carries the exact opposite electrical charge.
- The Positron: The most famous example is the antimatter twin of the electron. While a normal electron has a negative charge, its twin—called a positron—has a positive charge.
- The Antiproton: Similarly, the antimatter twin of a positively charged proton is the antiproton, which carries a negative charge.
The Process of Annihilation
Antimatter is extremely unstable in our natural environment because it cannot peacefully coexist with normal matter.
If a particle of regular matter physically touches its antimatter twin, they instantly destroy each other. This process is called annihilation. During annihilation, the entire combined mass of both particles is completely converted into a burst of pure, high-energy radiation (gamma rays). This is a perfect, real-world demonstration of Albert Einstein’s principle of mass-energy equivalence, represented by the equation E=mc2
