Assertion: oxygen's isotope | /r/CapableOf | undergo proton emission
Facets:
value: among the lighter chalcogens
type: OTHER
Source sentences:
text: Among the lighter chalcogens (oxygen and sulfur), the most neutron-poor isotopes undergo proton emission, the moderately neutron-poor isotopes undergo electron capture or β+ decay, the moderately neutron-rich isotopes undergo β− decay, and the most neutron rich isotopes undergo neutron emission.