ipl-logo

Atomic Theory Research Papers

1096 Words5 Pages

Atomic Theory Essay
Science has long endeavored to find out the secrets of the universe. From the Greek philosophers like Aristotle to the modern scientists such as Stephen Hawking, many have tried to discover the inner workings of our world. Our basis for both chemistry and physical science is matter. Few things, however, are more important to the scientific study of matter than the atom.
The study of the atom dates back to 400 BCE, when Greek philosophers Leucippus and his pupil Democritus developed the idea of atomos or atomon, meaning an indivisible piece of matter. These pieces of matter moved and existed in a space referred to as a void and believed to be entirely lacking matter. Aristotle, a philosopher coming shortly after the introduction …show more content…

In 1803, a scientist by the name of John Dalton developed an idea now known as atomic theory. Dalton, like the old Greek philosophers Democritus and Leucippus, believed that all existing matter was made of a vast quantity of smaller pieces which he called atoms in reference to the ancient Greek atomos. Dalton established the most basic and fundamental ideas for the study of the atom: the atom is indivisible, different elements of atoms exist with different properties, and atoms cannot be created or destroyed …show more content…

This became known as the gold foil experiment. He decided that for the particles to be deflected, the positive area would need to be mostly in the center - he called this the nucleus. This positive area, he posited, was surrounded by a cloud of electrons. Later, in 1919, Rutherford became the first person to transform one element into another, also discovering and naming the proton, now often denoted by p+ in scientific writings. This particle sat in the nucleus. Working alongside Niels Bohr, Rutherford decided that due to both the unaccounted-for mass and need for a stabilizing force in the nucleus, there had to be yet another particle - this was named the neutron, a neutral and uncharged atomic particle later discovered by one of his students, James Chadwick

Show More
Related

The Disappearing Spoon Chapter 6 Summary

855 Words | 4 Pages

While others thought it was a waste of time he found “As we know today, when a beam of electrons strike an atom, the beam punches out the atom’s own electrons, leaving a hole, Electrons are attached to an atom’s nucleus because electrons and protons have opposite charges, and tearing electrons away from the nucleus is a violent deed” (Kean123). Mosely began to fine tune and hunt for the missing elements, creating the atomic number, determining

Read More

History Of Atom Dbq

375 Words | 2 Pages

Ancient scientist like Democritus and Leucippus proposed the idea of the atom(Doc.1). They were the first to start the long train of ideas and knowledge that brought us to the view of the modern atom(O.I). Since then, scientist such as John Dalton and Dmitri Mendeleyev have made huge leaps in the field of atomic science. John Dalton published the atomic theory of matter(Doc.1). Dmitri Mendeleev created the periodic table that modern scientist use daily(Doc.1).

Read More

Pre-Ap Chemistry: The Discovery Of The Atum

874 Words | 4 Pages

Jack’Quoia Baulding Mrs. Allen Pre-Ap Chemistry 8 February 2018 The Discovery of the Atom Look at all that is around us, it is matter. The matter is anything that has a mass and takes up space. Theories of matter were first discussed by ancient Greek philosophers around 400 B.C. Many scientific theories and discoveries were major in the discovery of the atom.

Read More

How Did President Truman Shaped The Development Of The Atomic Bomb

1187 Words | 5 Pages

In 1938 scientists in Germany discovered that the nucleus of an atom could be split in two, or fissioned. The United States, along with other nations quickly confirmed this discovery . One month before the start of World War II, Albert Einstein brought this discovery to President Roosevelt’s attention. Roosevelt then created a government committee to organize and fund early Uranium research .

Read More

How Did Millikan Determine The Number Of Oil Dropss

563 Words | 3 Pages

In the early 1900’s, Robert Millikan started studying the charge of an atom. He wanted to know whether there was a smallest unit of electric charge and if so, what is this charge and what is its magnitude in Coulombs. In order to test this he took small oil droplets and put them through an atomizer which ionized the oil droplets. He then placed the oil droplets in a closed system between two oppositely charged plates with the negatively charged plate on top. In order to figure out the value of ‘e’ (elementary charge) he had to find the electric force of the fields.

Read More

The Manhattan Project: James Chadwick And The Atomic Bomb

868 Words | 4 Pages

As flapper girls with chic haircuts kicked off their dancing shoes, the night and the roaring twenties coming to an end, a tall, slender Englishman by the name of James Chadwick sat hunched over in his lab, working to find a particle that no one, not even the world’s most brilliant minds of his time, was sure existed. His name was James Chadwick and for nearly a decade, he had been trying to prove the existence of neutral particles in the nucleus of the atom, neutrons. As the new decade began, Chadwick still had no tangible evidence proving his neutrons, and maybe he never would have if not for the work of Irene and Frederic Juliot-Curie. The two scientists had performed an experiment where they bombarded alpha particles at beryllium, producing

Read More

How Did Wilhelm Geiger-Muller Contribute To Chemistry

1096 Words | 5 Pages

In 1911, he theorized that the nucleus of atoms contained negatively charged electrons and that there were electrons arranged in rings around the nucleus. Later work by Niels Bohr contributed to the Rutherford-Bohr atomic

Read More

John Dalton Research Paper

473 Words | 2 Pages

After he figured all of this out he shared it to everyone. This made him more known. Ernest Rutherford’s atomic theory is that the the atom is real. He got this with the help of two partners Hans Geiger and Ernest Marsden. The three of them found the existence of an atom is real.

Read More

Manhattan Project Research Papers

1603 Words | 7 Pages

This discovery opened scientists to the idea of generating power atomically and the possibility of creating atomic weapons. According to the Office of History and Heritage Resources publication: F. G. Gosling, The Manhattan Project: Making the Atomic Bomb, "They found that while the nuclei of most elements changed somewhat during neutron bombardment, uranium nuclei changed greatly and broke into two roughly equal pieces. " Nuclear fission demonstrated that a nuclear chain reaction was possible. Without this information, the Manhattan Project would not have been possible. However, since Otto Hahn and Fritz Strassmann were both German scientists, this discovery provided a significant advantage for the Germans over the Americans since they knew how to build atomic weapons.

Read More

Plutonium Dangerous Element

988 Words | 4 Pages

New elements are found everyday just by making a few modifications to their structure/origin, just like Plutonium. Plutonium was produced by G.T. Seaborg, J.W. Kennedy, E.M. McMillan, and A.C. Wohl in 1940 (Helmenstine). It was occasionally difficult to create another element. However, these four scientists managed to create the element plutonium. They did this by shelling an isotope of uranium (U-238) with deuterons that had been quickened in a device called the cyclotron ("It 's Elemental".).

Read More

Why The First Atomic Bomb Invented

1505 Words | 7 Pages

This new experiment was the first time an atom had been split. This ended up getting the ball rolling and the idea of the atomic bomb was born. Since radioactive elements, such as uranium, are unstable by nature some people realized that it could be harnessed into a bomb. Thus making the larges and most powerful weapon that has ever been created

Read More

Albert Einstein's Big Idea Research Paper

999 Words | 4 Pages

This led to the discovery that a nucleus doesn't simply increase in size when you add more neutrons; instead, the nucleus splits in two. An atom can be split. A large amount of energy is released, and this discovery was consistent with Einstein's

Read More

Ernest Rutherford Research Paper

217 Words | 1 Pages

Alpha particles were first discovered by Ernest Rutherford in 1899. Radioactive atoms are those in which the nuclei are unbalanced

Read More

Atoms Research Papers

579 Words | 3 Pages

The original model for atoms was created by Dalton who guessed that atoms were indivisible particles that looked like small billiard balls. Now we know that atoms are much more complicated. Through the advancement of technology we have a better understanding of atoms and how our world works. In 1897, a scientist named J.J. Thomson discovered that atoms were made of even smaller, negatively charged pieces called electrons.

Read More

Facts Needed To Establish Theories

702 Words | 3 Pages

If a theory has been made valid by thorough evidence, then there is no reason as to believe that the conclusion is false. Dalton is an english chemist and mathematician, who was the first person to prove the existence of atoms. His theory is the first complete attempt to describe all matter in terms of atoms and their properties. The theory is called the “Atomic theory” and can be explained in four key concepts—all matter is made up of atoms that are indivisible, all atoms of a given element are identical in mass, properties and compounds are combinations of two or more types of atoms and, atoms are the products of all chemical reactions. During the 1800’s Dalton explored the genetic makeup and nature of air.

Read More

More about Atomic Theory Research Papers

Related Topics

Open Document