How Did Demarcus Created The First Atomic Model

It was a great day in May of 1932 and when we finally received answers to the other particle in the nucleus. After many years of questions and theories; one man James Chadwick has discovered a new uncharged particle, the neutron. Chadwick had been studying to find this particle since 1914 in Germany with Hans Geiger, unfortunately due to World War I he was arrested and his studies were put on halt. Although he was in prison he was still able to do some scientific studies after creating a science club with some fellow prisoners; and convincing the guards to allow them to have a lab. Eventually he was released and return to England where he earned his PhD at Cambridge with Ernest Rutherford.

One of J.J. Thomson's most significant contributions to science, and thus to the study of atomic theory, was his discovery of the electron. Before the discovery of the electron, the atom was already associated with having electric charges-both positive and negative-but the idea of an electron existing as its own particle was unheard of. It was in 1897 when Thomson first conducted the beginning of his now famous experiment, in which he used a cathode ray tube to aid in his findings. A cathode ray tube, is a vacuum tube in which cathode rays, negatively charged particles, are produced at the cathode and travel through the vacuum, which is created when gas is extracted from the tube. J.J. Thomson discovered that in order to determine

Before I get into his education and early career, I want to talk about his status. He met a girl named Jane during his days in Oxford University. But that did not go for too long. Since he lost interest, he found another love named Nancy. She was also at the CERN. One of the company's

According to DePra’s poem, “The electron is minus, the proton is plus,/ the neutron is neither” (Doc. 2). In other words, a neutron is neutral, the electron is negative and the proton is positive. After these discoveries, more inventions were made to help further our understanding of atoms, for instance, the the electron microscope. Electrons were discovered before Rutherford by JJ Thomas (OI). Thomas was using a cathode ray and discovered that atoms are made of smaller subatomic particles

He discovered many helpful uses for atomic energy. He created the world’s first nuclear submarine named the USS Nautilus. All his work helped to expand the American nuclear fleet that included fifty three submarines and surface ships.

He stated that this was a mysterious force but never continued his research on it. Then in 460 B.C. there was a philosopher named Democritus. Democritus and his mentor Leocippus posed the question that if he broke bread into multiple pieces how many would breaks would it take until there was no more bread. He then was able to make a few theories being all matter was created of atoms and atoms are solid but not invisible. However, there was a man named Aristotle and many other philosophers who disagreed with Democritus and said matter was composed of four main elements. Earth, fire, air, and water. For example, a liquid was made of water and a stone was made of rock. Therefore, Democritus’s theory “ was rejected by Aristotle, one of the most influential philosophers of Ancient Greece; and the atomic theory was ignored for nearly 2,000 years.”(

He soon was recognized and got a job as a physicist. He was recruited by MIT to work on a project. When he was working, he invented the first

L. Herrington, who was head of the physics department in the U of S in the1940s.

Rutherford’s understanding of the atom was that the protons were clustered together in the nucleus. The nucleus is then surrounded by empty space occupied by electrons. (Lucas & Wright, 2001)

Bohr is well known for his amazing research on the structure of the atom, he thought that maybe the hydrogen atom was based on the quantum theory that energy can only be transferred in one way, and he also thought that E. rutherford model had some problems, so he fixed

Michael Faraday was born in 1791. He had a love for science and philosophy. His discovery of the electromagnetic induction was the most important scientific achievements of all time. He took this same idea and extended his research on this. This led him to the law

Ernest Rutherford was born August 30th, 1871, on a farm in New Zealand. He was the fourth child born out of his twelve siblings. Before he started to make mass discoveries in the world of science, he got his degree from the University of New Zealand and began to teach. After teaching for awhile, Rutherford got a scholarship to Cambridge University in England to be the first graduate

Ernest Rutherford was a New Zealand born British physicist who is famously known for “splitting the atom.” His work on the gold foil experiment contributed greatly to the model of the atom and helped develop the standard model of the atom to what we now use today. Without his contributions we would still be using the Plum Pudding model, an out dated and incorrect model, and we would have less of an understanding of how atoms form the world around us.

The Discovery of the Atom first came from the Greeks which made a theory “The idea that all matter is made up of tiny, indivisible particles, or atoms, is believed to have originated with the Greek philosopher Leucippus of Miletus and his student Democritus of Abdera in the 5th century B.C. (The word atom comes from the Greek word atomos, which means “indivisible.”)” (InfoPlease Atomic theory)

He proposed that under certain circumstances light could be considered a particles. He also hypothesized that the energy carried by a photon is depositional to the frequency of radiation. The formula E= HU proves this. Virtually no one accepted this theory but thought differently when Robert Andrews Millikan proved it.