Proton
A proton is a stable subatomic particle with a positive electric charge, located in the nucleus of an atom and essential for defining an element's atomic identity. It forms the core of atomic structure alongside neutrons, and in modern applications, protons are harnessed in technologies like particle accelerators and medical treatments for precise cancer therapy.
Did you know?
Protons are incredibly stable particles, with a half-life estimated to be at least 10^34 years—making them effectively immortal on cosmic timescales, while the universe itself is only about 13.8 billion years old. This longevity means that the protons in your body today could have been forged in the Big Bang or ancient stars billions of years ago.
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