Which of these statements is true with regard to the history of atomic theory?

1.) French scientist Antoine Lavoisier proved that oxygen was the component of air that combines with substances as they burn.
2.) The ancient Greek philosopher Democritus used data to describe the relationship between pressure and volume of gases.
3.) Paracelsus, a physician, botanist, alchemist, and astrologer, developed iatrochemistry, the use of alchemy to create medicines.
4.) Robert Boyle was an English chemist who proposed that all matter was composed of fundamental, uncuttable bits called atomos.

Question

Which of these statements is true with regard to the history of atomic theory?

1.) French scientist Antoine Lavoisier proved that oxygen was the component of air that combines with substances as they burn.
2.) The ancient Greek philosopher Democritus used data to describe the relationship between pressure and volume of gases.
3.) Paracelsus, a physician, botanist, alchemist, and astrologer, developed iatrochemistry, the use of alchemy to create medicines.
4.) Robert Boyle was an English chemist who proposed that all matter was composed of fundamental, uncuttable bits called atomos.