
Can you answer questions like this?
My TEAS Chemistry Essentials course will teach you everything you need to know, step by step.

Correct Answer:Â B
Â
You can tell from the periodic table square that Fluorine has an atomic number of 9. That is the number of protons. In Fluorine-19, there are 10 protons plus neutrons. So, since there are 9 protons, there are 10 neutrons.
If you don't know how to solve questions like this, my TEAS Chemistry Essentials will teach you step by step. Click here to get it.