Why does the right front end rattle when I go over bumps

Loose suspension component , best to visually confirm what exactly , or by your symptom description , replace both strut ASSEMBLIES (complete units with spring etc.) and replace the sway bar links . Those would be the most common guesses.

I second the loose or worn out suspension component. My 2006 Sebring Convertible's front end (driver's side) rattled terribly for over a year (no money for mechanic). Was positive, in my own smug way, that it was the front bumper fascia loose...because I would hit the front bumper with my hand and it would rattle and make the same sound driving. YouTube video by ChrisFix told me it could be outer tie rods. Sure enough I took off the driver's side tire and wiggled the outer tie rod where it connects to the wheel and it wiggled easily (IT SHOULD NOT DO THIS, DANGEROUS). Put in new driver's side outer tie rod (very easy to do, but eventually must have front end re-aligned). WHAT A DIFFERENCE! Rattling went away completely. (It even rattled on smooth surfaces) Now, no more rattle. Checked the passenger side outer tie rod. Didn't wiggle, so thought just replace anyway. After I got the old off, I could wiggle the screw part that went into the steering hole (another bad tie rod, should not wiggle AT ALL). Now noise gone, steering more "tight." But still have sounds, bad ball joints...always something...