The half-life of a radioactive element is 1250 years. what percent of atoms remain after 7500 years?

if you're asking what comes out, it's steam.

confused

confused             hewdejdnjnjsnd

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.