a) What are the two isotopes of carbon?
b) Give any two applications of radioactive isotopes?

Dear student,

1. Carbon has its 3 naturally occuring  isotopes: 12C (6 neutrons +6 protons), 13C,( 7 neutrons + 6 protons) and 14C (8 neutrons+ 6 protons). Out of these three the first two are stable while the 14C is radioactive or cosmogenic.
Their abundance is also different in nature the radioactive isotope has an abundance of 1 part per trillion while the isotope with atomic  mass has abundance of 98.89% and another one has an abundance of 1.109% .

2.Radioactive isotopes has a wide variety of uses like in  cancer treatment, food irradiation and in radiography also.we have several examples as well like we use 
60Co as a radiation source to arrest the development of cancer and we have many more examples.


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