Chemistry Practice Problems Electron Configuration Practice Problems Solution: The atomic number of oxygen is 8, because oxygen h...

Solution: The atomic number of oxygen is 8, because oxygen has a. a second shell with eight electrons. b. electrons in eight shells. c. eight protons in the nucleus. c. an atomic mass of 8.

Problem

The atomic number of oxygen is 8, because oxygen has 

a. a second shell with eight electrons. 

b. electrons in eight shells. 

c. eight protons in the nucleus. 

c. an atomic mass of 8.