Definition:Hydrogen
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Chemical Element
Hydrogen is the chemical element that has $1$ proton in the nuclei of its atoms.
Its chemical symbol is $\text H$.
H-$1$
Hydrogen-$1$ is the isotope of hydrogen which consists of exactly $1$ proton and no neutrons.
H-$1$ is the most common stable isotope of hydrogen, making up $99 \cdotp 98 \%$ of the hydrogen found on Earth.
Sources
- 1990: I.S. Grant and W.R. Phillips: Electromagnetism (2nd ed.) ... (previous) ... (next): Chapter $1$: Force and energy in electrostatics: $1.1$ Electric Charge