How many protons are in the nucleus of an atom of oxygen?
1 Answer
Dec 5, 2015
The atomic number tells us how many protons are in the nucleus for any given element.
Explanation:
Oxygen is atomic number 8.
Therefore, its nucleus contains 8 protons.
Protons are positively charged. One proton has a charge of
So the atomic number not only tells us the number of protons in an atom, but also the number of electrons.
Oxygen has 8 protons, and 8 electrons.