How do the physical properties of isotopes differ from each other

Question

Chemistry question-- please answer and explain it fully asap thanx

Answer 1

Chemical properties are all the same.  The only physical properties I am aware of that will change between isotopes are the mass of the atom, the density of the atom, and the half life of the element.  Since the mass of the element is different between isotopes, under a particular influence of kinetic energy, say a applied electric field, thus the velocity maximum reached under that influence will vary--lighter elements moving faster.

Isotopes are often used in analytical chemistry for radiolabeling because the physical properties are identical between isotopes, making them wonderful for use as internal standards.  

Also, I have seen that the triple phase diagrams of some isotopes differ slightly quantitatively and qualitatively.