Question

The atomic number of an element is 19. Which is true of this element?


A.
Each atom has 19 neutrons.


B.
Each atom has an atomic mass of 19.


C.
Each atom has 19 protons.


D.
Each atom forms 19 ions.

Answer 1

Atomic number is the number of protons.

Answer 2

Sorry I thought I was in the chemistry studying place.

Answer 3

So then 19 protons?

Answer 4

It's fine. And yes.

http://en.wikipedia.org/wiki/Atomic_number

Answer 5

Thanks again your my superman! ;)

Answer 6

Haha you're welcome. I don't usually say this but, it'd be cool if you can thank me in this month's blog entry.