atomic number 1 (0 synonym found)

Definition of atomic number 1:

(n) : a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

Definition of atomic number 1:

(n) : a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

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