How to Write the formula for Nitrogen Monoxide

In this video we'll write the correct formula for Nitrogen Monoxide.

To write the formula for Nitrogen Monoxide we’ll use the Periodic Table and follow some simple rules.
When we have a non-metal and a non-metal we have a molecular compound (sometimes called covalent). Molecular compounds are some of the simplest to name.

Keys for Writing the Formulas for Molecular Compounds:

- Write the element symbol for both elements.
- Place a subscript after each element according to its prefix.

Note: Don’t write the subscript '1'.

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Prefixes
mono- 1
di- 2
tri- 3
tetra- 4
penta- 5
hexa- 6
hepta- 7
octa- 8
nona- 9
deca- 10
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Caution: We only write "mono" for the second element in a molecular compound. So CO would be carbon monoxide. Monocarbon monooxide is incorrect.

For a complete tutorial on naming and formula writing visit:

or watch

Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

[AlexanderBrior]

My chemistry teacher asked me to give him the formula for nitrogen monoxide. I said NO.

[Gabbs_.x]

I watched this for the answer, I actually learned something and was able to answer more on my own. Thank You Kind Sir!

[shrabantikashee]

Sir nitrogen's valency is 3 and 5 ..but how come it's possible and valency oxygen is 2...

[kristaldanemagracia]

I have problem, I don't know what's the elements of nitrogen monoxide

[elliot]

why isn't it n2o3 because hydrogen sulphide is h2s, it is weird because it is just NO and no numbers, someone please help?

[ButterySkater]

i tried googling what a molecular compound was. it made my head hurt rather than help me.

[Hathschwalth]

Is this structural Formula or molecular?