The isotopes of an element contain :

The isotopes of an element have

(a) What are radioactive isotopes ? Give two examples of radioactive isotopes (b) Give any two uses of ratioactive isotopes (c) An element Z contains two naturally occuring isotopes ._(17)^(35) Z and ._(17)^(37)Z . If the average atomic mass of this element be 35.5 u, calculate the percentage of two isotopes.

Isotopes of an element have

Isotopes of an element have

Isotopes of an element have

The isotopes of an element differ in