O: Thorium oxide, ThO2 - many important uses, see the link
F: Thorium tetrafluoride, ThF4 - used as antireflection layer in optics
C: Thorium carbide, ThC - used as nuclear fuel
because they help people with stuff and stuff...
stuff
black and stuff
Because it's useful stuff to have.
A particle is part of a element, and the element has particles in it. A particle is like a small tiny object and a element is stuff combined.
It helps the eye, and gets rid of stuff.
A spatula is very useful in turning over things when cooking.
Computers are very useful. you can look up stuff and have fun! hope i helped!
It allows us to stick stuff together.
the part that you use to clean stuff.
an arm is for grabbing stuff. it is only useful if you have a hand though.
yes it develops there brain and memory