Question

3 ccc patterns draw the electron dot structures for the ions formed by nitrogen, oxygen, and fluorine atoms. use a different colored pen or pencil for the electrons that the atoms gain to form these ions.

Explanation:

Step1: Determine electron - gain for nitrogen

Nitrogen has 7 electrons. It gains 3 electrons to achieve an octet and forms $N^{3 - }$. The electron - dot structure for $N^{3 - }$ has 8 valence electrons (represented as dots) around the N symbol.

Step2: Determine electron - gain for oxygen

Oxygen has 8 electrons. It gains 2 electrons to achieve an octet and forms $O^{2 - }$. The electron - dot structure for $O^{2 - }$ has 8 valence electrons around the O symbol.

Step3: Determine electron - gain for fluorine

Fluorine has 9 electrons. It gains 1 electron to achieve an octet and forms $F^{-}$. The electron - dot structure for $F^{-}$ has 8 valence electrons around the F symbol.

Answer:

For $N^{3 - }$: Draw the symbol N with 8 dots around it.
For $O^{2 - }$: Draw the symbol O with 8 dots around it.
For $F^{-}$: Draw the symbol F with 8 dots around it.