Decritus And Leucippus

Question 1

Ancient Greek philosophers ——— and his student ——— was the first to propose this idea, about 440 B.C.

Answer 1

Leucippus
Democritus

Question 2

had the idea that there are many kinds of atoms and each of them has a specific shape and size and that all atoms move randomly around in space.

Answer 2

Both Leucippus and Democritus

Question 3

However, they did not explain the motion of atoms.

Answer 3

Both Leucippus and Democritus