it protone
― PartOf ⟶
Weight: 1.0
it nucleo Source: Open Mind Common Sense contributors luigi
it nucleo
― PartOf ⟶
Weight: 1.0
it atomo Source: Open Mind Common Sense contributors luigi
it nucleo
― PartOf ⟶
Weight: 1.0
it cellula Source: Open Mind Common Sense contributors alfanimau