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(a) What are radioactive isotopes ? Give two examples of radioactive isotopes. (b) Give any two uses of radioactive isotopes. (c) An element Z contains two naturally occurring isotopes 3517Z and 3717Z. If the average atomic mass of this element be 35.5 u, calculate the percentage of two isotopes.

Answer»

(a) What are radioactive isotopes ? Give two examples of radioactive isotopes.

(b) Give any two uses of radioactive isotopes.

(c) An element Z contains two naturally occurring isotopes 3517Z and 3717Z. If the average atomic mass of this element be 35.5 u, calculate the percentage of two isotopes.



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