Pop quiz 1/Question 13

Alright, that had a bit of math in there.

This one is pure chemistry. You don't need a Periodic Table for this!

Question 13: What is element number 17?

There are many fantastic chemical elements scattered around our world, but one has to have 17 protons!

17 neutrons work, but sometimes elements don't need the same number of neutrons as that of protons. That's where isotopes come in.

And it doesn't always have 17 electrons either! It sometimes accepts more and becomes a negatively charged ion, or anion!

But really, this isn't about isotopes or ions.

Good luck!

*No Periodic Tables allowed! What is element number 17?

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