Question

unit 3 chem l test 2526
figure 6 - 13 is a diagram of which element?
helium
oxygen
fluorine
beryllium

Explanation:

Count the number of protons in the nucleus. Oxygen has 8 protons. The diagram shows a nucleus with 8 protons and electrons in orbitals around it. Helium has 2 protons, fluorine has 9 protons, and beryllium has 4 protons.

Answer:

oxygen