Examlex
The mass of a nucleon is approximately four times the mass of a hydrogen atom.
Earthquake Intensity
Refers to a measure of the effects of an earthquake at a specific location, describing how strong the ground motion was at that spot.
Hydrogen Ion Concentration
A measure of the acidity or alkalinity of a solution, denoted by pH, which corresponds to the negative logarithm of the concentration of hydrogen ions in the solution.
pH
A measure of the acidity or alkalinity of an aqueous solution, ranging from 0 to 14.
Half-Life
The time required for a quantity to reduce to half its initial value, often used in physics and chemistry to describe radioactive decay.
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