Concept:Neutrons are found by subtracting the atomic number from the mass number.Explanation:The atomic number equals the number of protons, which is 8.The mass number equals the total number of protons plus neutrons, which is 16.To find the number of neutrons, subtract the atomic number from the mass number:Number of neutrons =16−8Number of neutrons =8Therefore, the element contains 8 neutrons.Answer:8 neutrons (Option C).