believed that matter consisted of noncuttable pieces he called atomos

Answer 1

The ancient Greek philosopher Democritus is credited with the belief that matter consisted of noncuttable pieces, which he referred to as "atomos." He proposed that all matter is composed of these indivisible particles that are constantly in motion. Democritus also postulated that different types of atoms have different shapes and sizes, giving rise to the various properties and qualities observed in different materials. While Democritus' atomic theory laid the foundation for modern atomic theory, it was further developed and expanded by other philosophers and scientists such as John Dalton and Albert Einstein.