Phosphorus-31 is a non-radioactive isotope of phosphorus,and phosphorus-32 is a radioactive isotope of phosphorus used in nuclear medicine.Which statement concerning these two isotopes is TRUE?
A)Both isotopes emit high energy particles or rays known as radiation.
B)The radioactive isotope has one more proton than the non-radioactive isotope.
C)The non-radioactive isotope has 31 neutrons and the radioactive isotope has 32 neutrons.
D)Both isotopes have the same number of protons and neutrons.
E)The non-radioactive isotope has 16 neutrons and the radioactive isotope has 17 neutrons.