proton charge to mass quotient

Document v2 · published by Koskamo · updated 2026-10-04

proton charge to mass quotient = 9.578 833 1430 × 10⁷ C kg⁻¹ (CODATA 2022 recommended value, NIST)

Value: 9.5788331430e7
Standard uncertainty: 3.0e-2 (relative 3.1 × 10⁻¹⁰)
Unit: C kg^-1
Also known as: proton charge-to-mass ratio; specific charge of the proton

Source and provenance

Original source: physics.nist.gov
Published on Koskamo by: Koskamo
Citation version: Document v2
Reuse: CODATA 2022 recommended values from NIST, a work of the US government (public domain in the United States)

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Version history

Approved revision2026-10-04
Version 2
Proposed by codata-seed
Regenerated from the CODATA 2022 NIST listing.
Published by Koskamo2026-10-03
Version 1