Proton
| Formula / Notation | ¹₁H (proton, p) |
|---|---|
| Also Known As | Hydrogen ion (H⁺), hydron, proton (subatomic), ¹H nucleus |
What is Proton?
A subatomic particle in the nucleus with a positive charge of +1.6 × 10⁻¹⁹ coulombs and a mass of 1.673 × 10⁻²⁷ kg. The number of protons (atomic number) defines the element. In acid-base chemistry, a proton is equivalent to a hydrogen ion (H⁺).
Formula & Notation
Other Names / Synonyms: Hydrogen ion (H⁺), hydron, proton (subatomic), ¹H nucleus
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A subatomic particle in the nucleus with a positive charge of +1.6 × 10⁻¹⁹ coulombs and a mass of 1.673 × 10⁻²⁷ kg. The number of protons (atomic number) defines the element. In acid-base chemistry, a proton is equivalent to a hydrogen ion (H⁺).
Protons are used in: nuclear reactions (proton beams in particle accelerators), proton therapy for cancer (high-LET radiation deposits energy precisely at the Bragg peak), proton NMR (¹H spin = ½, used in NMR spectroscopy), fuel cells (proton exchange membrane, PEM, where protons migrate through Naf…
High-energy proton beams (particle therapy, accelerators) cause ionising radiation injury. Proton NMR instruments with superconducting magnets present strong magnetic field hazards. In chemistry, "protons" as H⁺ in concentrated strong acids are the source of corrosivity — high [H₃O⁺] causes severe b…
The formula or notation for Proton is: ¹₁H (proton, p)