Can anyone clarify what the Diatomic Elements. . .

. . .do. Why are they called Diatomic elements? Is their an easy way to remeber them? Just found this site seems pretty cool.


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Have (hydrogen,H) No

Have (hydrogen,H)
No (nitrogen,N)
Fear (fluorine,F)
Of (oxygen,O)
Ice (iodine,I)
Cold (chlorine,Cl)
Beverages (bromine,Br)

The halogens are all diatomic elements. (if i am not wrong)

As is H[size=8]2[/size], O[size=8]2[/size], N[size=8]2[/size]

use the term, BrINClHOF (brinclhof)
Br2, I2, N2, Cl2, H2, O2, F2.

Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Fluorine.

[b]HON[/b]-est [b]Halogens.[/b]


and the others from Group VII.

and Iodine

(sadly At does not hang around too long)

Not including At, there are seven of them, and they make up a [i]seven[/i] like pattern in the periodic table.

Thank you guys for the reply's.


Diatomic Elements

My teacher is awesome and gave us a great anagram to remember the diatomic goes!

H - Horses
N - Need
O - Oats
F - For
Cl - Clear
Br - Brown
I- eyes (I's)

The list is Hydrogen, Nitrogen, Oxygen, Fluorine, Chlorine, Bromine and Iodine. Pretty cool huh? :D
I love this stuff!!!

There seems to be lots of different ways of remembering which elements are does this mean it is a common thing that students are supposed to revise?

Just thinking back to my schooling days, I can honestly say I never memorised which elements were diatomic. I'm pretty sure I knew, because I don't remember revising it, which must mean I was told. But it was never something that was examined on...
Is it something you are made to revise because you will be tested on?
Is this a UK thing too (I notice one of you was fro Scotland, suggesting this to be the case)?
Feline1 will know!

Aye, I don't recall lists of diatomic elements being "drilled into us" to be learnt by rote -
but I concur that it was just a bit of a trivial thing that I found myself knowing anyway, without having to learn it.

Doesn't mercury for diatomic units in some circumstances? Hg[sub]2[sub][sup]2+[/sup]

cadmium can also be coaxed into it?

And I seem to recall that in the gallium (an element with some of the daftest physical properties) has an unusally short Ga-Ga bond length in the solid metal matrix in one direction,
which ends up as (Ga-Ga) "molecules" in the gas phase?
or am I dreaming?

if you'd have asked me that 4 months ago, I would have known.
But I've passed those exams now, and don't need to remember any of it for my research project, so it was promptly forgotten about :D

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