Why do scientist use radioactive decay to figure out how old stuff is

Instead of what ?
How would YOU do it ? 
What other way would you suggest ?

I mean, fossil bones and broken chips of Hittite pottery
don't exactly have manufacturing dates printed on them.

What are the choices?

This is what i found on google “what happens to the bond angle when you add or remove an electron domain? the bond angle decreases as you add domains 5. can you force the atoms into new configurations by pushing atoms around? note: we can think of a bond or a lone pair of electrons as a “domain” of electrons.” i hope this you