In a sample of ethyl ethanoate (CH3COOC2H5) the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?
Isotopes are the elements which have the same atomic number or protons but different mass numbers. In ethyl ethanoate the two oxygen atoms have same electrons that means have same number of protons but different neutrons which lead to different mass numbers for both of them.