Among the pre-Socratics in the fifth century BCE, who conceived of an atomic theory in which everything is made up of small, indivisible particles and empty space?
A. Plato
B. Protagoras
C. Heraclitus
D. Leucippus
Answer:D
Among the pre-Socratics in the fifth century BCE, who conceived of an atomic theory in which everything is made up of small, indivisible particles and empty space?
A. Plato B. Protagoras C. Heraclitus D. Leucippus