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What are the seven diatomic molecules?

Answer:
Hydrogen, Nitrogen, Oxygen, Fluorine, Chlorine, Bromine, Iodine ( and Astatine ).

An easy way to remember this is to think of the phrase:

Professor Brinclof (BrINClOF), or Br, I, N, Cl, O, F (and Astatine)

Another way to remember:

He Never Orders Fried Clam Brains Immediately

or:

Oh I Have Nice Closet For Brooms
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Contributor: Michael
First answer by ID1645740764. Last edit by AlexRaine. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 11 [recommend question].