Democritus was the Greek philosopher who made a mental model of the atom. He said that atoms composed everything and were physically but not geometrically indivisible. Between the atoms there is empty space. They always will have been, and will be in motion and are indestructible. Different atoms differ in size and shape.
The Greeks, from the word atomon, meaning "uncuttable, indivisible."
The Greek philosopher who is credited with introducing the concept of "atom" is Democritus. He proposed that matter is composed of indivisible particles called atoms, which differ in shape and size, and are constantly in motion. This idea laid the foundation for modern atomic theory.
Dalton's mental image of an atom can be best represented by a solid, indivisible sphere with no internal structure, similar to a billiard ball. This model suggested that atoms were the smallest, fundamental particles of matter.
Democritius's model of the atom-that it was an indivisible-was accepted for quite a long time. However in 1940 the layout of the electrons, protons and neutrons were worked out by Maria Goeppert-Mayer, Eugene Wigner etc. so a model that the questioner is probably imagining as the 'accepted one' could be created. However since the electrons, protons and neutrons are made of quarks-discovered in 1964, another model of the atom was discovered.
The idea of the atom was first proposed by the ancient Greek philosopher Democritus in the 5th century BC. He believed that everything is made up of tiny, indivisible particles called atoms.
The first atomic model was proposed by the Greek philosopher Democritus in 442 BC.
democritus
The Greek philosopher who named the atom was Democritus. He was one of the first to propose that matter was made up of indivisible particles called atoms.
The Greek philosopher who gave the atom its name was Democritus. He proposed that all matter is composed of small indivisible particles called atoms.
Democritus was the Greek philosopher who proposed the atom model in 460 BC. He stated that all living things are made up of tiny, indivisible things called atomos.
The Greek philosopher that named the atom was Democritus. In Greek, the word atomos means indivisible. Democritus was born in Abdera, Greece in 460 BC.
Democritus
This was the Greek philosopher Leukippus and then his successor Democritus.
A Greek philosopher named Democritus of Abdera coined the word atom in about 420 B.C.
The Greeks, from the word atomon, meaning "uncuttable, indivisible."
the Greek Philosophers did not test their theory.
These philosophers were Leukippus and his disciple Democritus.