Assertion: alpha decay | /r/CapableOf | reduce atomic number
Facets:
value: in the uranium-238 decay series
type: TEMPORAL
value: by 2
type: OTHER
Source sentences:
text: In the Uranium-238 decay series, alpha ( α α ) decays reduce the atomic number, as indicated by the red arrows.
text: Alpha decay decreases the atomic number by 2 and the mass number by 4, so we have 90 232 T h
text: In the Neptunium-237 decay series, alpha ( α α ) decays reduce the atomic number, as indicated by the red arrows.
text: Nuclei with Z > 83 are too heavy to be stable and usually undergo alpha decay, which decreases both the mass number and the atomic number.