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Structures made of DNA and other molcules are

H2O (water)

N2 (nitrogen)

O3 (ozone)

(if you need examples I hope this is good enough)

Explanation:

a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

chemists can use the electron cloud model to assign electrons to different atomic orbitals. atomic orbitals also explain the patterns in the periodic table

explanation:

58750.08068 is the answer i think