Assertion: atom | /r/HasAspect | same number of protons
Facets:
value: always
type: TEMPORAL
Source sentences:
text: Atoms of the same element have the same number of protons, called the atomic number.
text: Atoms of the same element always have the same number of protons, and since this figure is unique for a given element, each element is assigned an atomic number equal to the number of protons in its nucleus.
text: Two atoms may be of the same element, and thus have the same number of protons, yet differ in their number of neutrons—which means a difference both in mass number and atomic mass.
text: Made up of atoms that all have the same number of protons.
text: Matter consisting of a single element contains atoms that all have the same number of protons.