Writing the Formula for Nitrogen Dioxide

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

To write the formula for Nitrogen Dioxide 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).

[JaswinderKaur-jzif]

Why it is NO² as valency of nitrogen is 3, so shouldn't it be N²O³??

[tusharbhurtah]

Sometimes Nitrogen Dioxide is called Nitrogen(IV) oxide, how so?? Isn't valency of nitrogen 3, so why not "Nitrogen (III) oxide" ?

[katsuisbaby]

U solve the formulas very easily and simply and i like it
can u do me a
can u make a video for the formula for nitrogen yes, please upload it as fast u can. and once again the video was

[zeenatkhan]

If u will do like this in examination u will get 0 mark ..pahle chem ki class kro