Alpha and Beta particles can be stopped by our skin. Gamma particles cannot be stopped by our skin.
Answer:
me too? HAHAHHAHAHAHAHAHAHAHAHHA
I think the correct answer from the choices listed above is the first option. The Greeks were the first to use the term atom. In 450 BCE, Democritus coined the term átomos which means "uncuttable" or "the smallest indivisible particle of matter".
