Respuesta :

4
There is N, and H3. The 3 indicates that there are "3" atoms. If an atom has no letter, such as N, then it is 1. So, you could say N1H3. 
skyluke89

The formula of the substance is:

[tex]NH_3[/tex]

So, in this substance we have:

- 1 atom of nitrogen (N), since it has no subscript, it means we have only 1 atom

- 3 atoms of hydrogen (H), since it has subscript 3

so, the total number of atoms in the substance is

1+3=4

And the correct answer is four.

Otras preguntas