Atomic Theory Essay

Atomic Theory and the Study of Matter Matter is anything made up of atoms and molecules and the study of these “things” called atoms dates back to the time of Ancient Greece to the present. The information about atoms known today is certainly much greater than what was known centuries ago. First, there was only hypotheses on this idea that everything in the world is made up of tiny, unseeable particles. As technology advanced, these hypotheses were tested, critiqued, modified, and built upon. A

History of Atomic Theory The development of the atomic model began in 400 B.C. when Greek philosophers, Leucippus and his pupil Democritus theorized the existence of atoms. They came up with the idea that matter of composed of tiny particles, but didn’t think their theory was particularly special. They knew that at a certain point it was impossible to divide matter so they coined the term ‘atomos’ with literally meant “uncuttable” or “indivisible”. They also attributed the properties of the atoms

The Atomic Theory is a theory that explains what matter is made of. The Atomic theory states that matter can’t be divided as it is made up of minute particles called atoms that cannot be separated. The very word atom is derived from the Greek word Atmos which means indivisible. Atomic theory timeline- Year Person/People Event 442 BCE Democritrus and Leucippus These Greek philosophers came up with the idea that all matter is composed of indivisible elements. 1803 John Dalton British chemist and

In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms. It began as a philosophical concept in ancient Greece and entered the scientific mainstream in the early 19th century when discoveries in the field of chemistry showed that matter did indeed behave as if it were made up of atoms. The word atom comes from the Ancient Greek adjective atomos, meaning "uncuttable". 19th century chemists began using

Because the structure of the atoms has always puzzled scientists, the idea of the atom had changed throughout the history of Earth. Democritus had originally issued the idea of atoms. (Doc 1) He proposed that the materials could be broken down until the thing couldn’t be broken down anymore. (OI) He named this little unit the atom, and this means “indivisible.” (OI) After that, research began to fully know what the atoms is and what it is made out of. After centuries of research, the atom we all

His theory which was first presented in 1803, stated that each chemical element is made up of its own kind of atoms, all consisting of the same relative weight. It also explained why a fixed weight of two substances always combine, when forming a compound. He

Democritus’s main contribution to the atomic theory is that he was the man who asked how many times matter can be broken down. Living from around 460 to 370 BCE, this question was not thought of much at his time. Democritus stated that there must be a state of matter too small to be broken down anymore. He called this matter atoms. Aristotle disagreed with Democritus. He stated that Democritus's ideas were wrong and there was no truth to them. Aristotle was 14 years old when Democritus died. Meaning

the Atomic Theory John Dalton was an English chemist, meteorologist and physicist. John Dalton was one of the first scientists to use homemade instruments to make weather observations. He recorded over 20,000 weather observations over a period of 57 years,(Retrieved from Infobase Learning). His fascination for the weather and atmosphere pursue him to research the nature of gases, which in turn lead him to his biggest accomplishment. He built the atomic theory, after two centuries, this theory still

everything was visually there, but what it was made up of remained a thoughtless mystery. Today, this is why atomic theory is an important basis for the foundation of chemistry, physics, and various other scientific discoveries. Without atomic theory, the basic building blocks of the world would remain unclear, which would make understanding the study of science almost impossible. Atomic theory explains the idea that within the composition of matter, there exists numerous particles called atoms. This

John Dalton did many things in his life. He was most known for his Atomic Theory, Law of Multiple Proportions, Dalton 's Law Partial Pressures, and Daltonism. He had a noble award for Royal Medals. Deborah and Joseph Dalton gave birth to John Dalton on September 6, 1766 at Eaglesfield, Cumberland, England. John was born into a Quaker family. His father was a weaver and his mother stayed at home and help with the cooking, children, laundry, etc. John had two other siblings Mary and Jonathan Dalton