Carbon, essential
For life as we know it, yet
Some might disagree.

Nitrogen, for plants
Who need it the most, but not
As a gas, my friend.

We breathe Oxygen
But don't try the pure stuff, or
You're likely to die.

Fluorine is for teeth
In toothpaste, so minty fresh!
Please brush every day.

Neon lights up signs
With its reddish-orange glow
So stay on your toes!