An Article in a Medical Journal Indicates That Researchers Have

Multiple Choice

An article in a medical journal indicates that researchers have used an isotope ³H to trace a certain metabolic process.From the symbol that is given,we know this is a hydrogen isotope with

A) three protons.
B) three neutrons.
C) three electrons.
D) one proton and two neutrons.
E) two protons and one neutron.