. "107765047"@en-us . . "0"^^ . . . . . "allotropy"^^ . "allotropism"@en-us . . "the phenomenon of an element existing in two or more physical forms"@en-us . . "11409329-n"^^ . . "111409329"^^ . . . . . "110671535"@en-us . "allotropy"@en-us . . "0"^^ . . .