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Hasil cari dari kata atau frase: atomic number 18(0.00979 detik)
Found 1 items, similar to atomic number 18.
English → English (WordNet)
Definition: atomic number 18
atomic number 18
n : a colorless and odorless inert gas; one of the six inert
gases; comprises approximately 1% of the earth's
atmosphere [syn: argon, Ar]