bn:01480533n
Noun Concept
Categories: Astrophysics, Hypothetical chemical elements, Neutron, Articles with short description, Exotic matter
EN
neutronium  dineutron  Dineutronium  element zero  Isotopes of neutronium
EN
Neutronium is a hypothetical substance composed purely of neutrons. Wikipedia
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EN
Neutronium is a hypothetical substance composed purely of neutrons. Wikipedia
Sometimes referred to as an "element" with atomic number 0 Wikipedia Disambiguation
Hypothetical substance composed only of neutrons Wikidata
The supposed material, composed entirely of neutrons, that makes up a neutron star. Wiktionary
Neutron star material. Wiktionary (translation)