Nitrogen

[Katie Lam 1B]

When a problem states that nitrogen is formed, can we always assume that the product is gaseous nitrogen (N2)?

[Jessica Nunez 1I]

Yes. If a problem states that nitrogen is produced in their elemental form, then we can assume the product is gaseous nitrogen and that it is a diatomic molecule (N2).

[Alyssa Pelak 1J]

Also, just to help with future questions, this can be assumed with all of the diatomic molecules. Br, I, N, Cl, H, O, and F. You can remember them as BrINClHOF (brinkl-hoff) or Have(H) No(N) Fear(F) Of(O) Ice(I) Cold(Cl) Beer(Br). Hope this helps

[Yizhou Liu 3L]

Yes. Nitrogen can only maintain in a liquid state at extremely low temperature or extremely high pressure. Its boiling point is 77K under atmospheric pressure, which means in most cases it is gaseous.

[Victoria Draper 1G]

Since nitrogen is a diatomic particle, it can always be assumed that when it is produced (especially under extremely high temperatures) it usually consists of 2. An easy acronym to remember which elements appear in twos is BrINClHOF.

Hope this helps!

[David Zhou 1L]

I've found there's no need at all for a complicated mnemonic to memorize which gases form diatomic molecules; that just makes things harder, because you have to recall the entire string of elements in your word or phrase to pick out the single one you need.

To me, it's far easier to just look at the periodic table and remember the upside down L-shape that these elements form:

N O F
----Cl
----Br
----I

And don't forget about H.

You can get the same info in a single quick glance if you know what you're looking for.