Many stable ions have the same electron configurations as
a) the closest nobel has element
b) the closest group 1a element
c) the closest group 7a element
d) a member of its chemical family

The answer should be vaporization 

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.