ipl-logo

Atoms Research Papers

579 Words3 Pages

Marjorie Mitalski
Period 1

To understand the world we live in, we need to know what it’s made of. Everything in the world is made out of atoms. Atoms are very small, too small to see with the naked eye. Since we can’t see them, it’s very hard to study them. There have been many models created to try and understand atoms. 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. …show more content…

In 1911 Ernest Rutherford and his team directed a beam of positively charged particles at a thin sheet of gold foil. If Thomson’s model was correct, the beam would pass through the foil. The team predicted that some of the beams of particles would bend, but not drastically. This was because scientists believed that positive charges were spread out in gold atoms.When they conducted the experiment, most particles passed through the sheet, but some particles were deflected, and bounced right back. Rutherford concluded that the atom is mostly empty space, but at its center was a nucleus with particles of a positive charge. He called these particles …show more content…

Even today we know that the atom has neutrally charged neutrons in the nucleus to keep the protons from repelling each other and that protons. In addition, neutrons and protons are made up of even smaller particles called quarks. Better microscopes and particle rays have advanced our knowledge on atoms tremendously. I am very impressed with Thomson’s model. He discovered electrons even without high tech gadgets. Everyday technology is becoming more and more advanced and available to us. It is very likely we will learn new information in the coming years and the model may even change again

Show More
Related
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
375 Words | 2 Pages

Scientist continued to develop the world's knowledge of the atom. In 1896, Henri Becquerel accidentally discovered radioactivity(Doc.1). Furthermore, in 1911, Ernest Rutherford discovered atoms were made of smaller particles and that they had a positively charged nucleus(Doc.1). Throughout decades, scientist have honed ,developed, and continued in the study of the science of the

Read More
720 Words | 3 Pages

Gregorio Hernandez Mr. Schlinkmann Think and Write The early development of the Periodic Law or table was found by many contributions from a variety of scientists. The contributions led to the discovery and establishment of the Periodic Table. Which help create the Periodic Table we use as of today. The person who created the Periodic Table was a chemist named Dmitri Mendeleev, but not without the help of a few other scientist who helped him get the idea by passing down information they had found. Mendeleev discovered the Periodic Table by trying to organize the elements.

Read More
874 Words | 4 Pages

Rutherford also discovered the nucleolus, which is at the center of protons and neutrons. The nucleolus is tiny and has a positive charge. Neutrons, one of the other subatomic particles was demonstrated by Chadwick. He also found that neutrons have no charge. The number of neutrons in the nucleus of an element determines the isotope.

Read More
431 Words | 2 Pages

His vitreous fluid corresponds to what we now call positive charge, and the resinous fluid is now termed negative charge. Charge Carriers More than one hundred years after the work of Benjamin Franklin, the secrets of the atom itself began to be revealed. Moreover, in 1897, J.J. Thomson discovered the electron. Soon after, it was determined that these charged particles existed in all atoms and that a countercharge, carried by some other part of the atom, was necessary to make the overall charge of the atom neutral. In time, the proton was determined to carry this charge.

Read More
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
461 Words | 2 Pages

That gives them a total of 10 electrons. Along with atomic number, protons, and electrons there is a atomic mass which is 20.1797. Neon was discovered by Sir William Ramsay, a Scottish chemist, and Morris M. Travers, an English chemist, shortly after their discovery of Krypton. Like krypton, neon was discovered through the study of liquefied air. Although neon is the fourth most abundant element in the universe, only 0.0018% of the earth’s atmosphere is made up of neon.

Read More
1723 Words | 7 Pages

In 1926 an Austrian physicist, Erwin Schrödinger, created the Electron cloud model of the atom after calculating many mathematical equations that described the likelihood of discovering an electron that was located in a certain position of the atom. Before the Electron cloud model was created, Erwin Schrödinger wrote a group of papers covering the concept of wave functions and mechanics. The Schrödinger Equation came from the information that was written in these papers. The Schrödinger Equation was a mathematical formula that would be able to describe how the quantum state of a quantum system ends up changing through the course of time. This information that was concluded throughout the writings of the papers and the creation of the Schrödinger Equation became the basis for the Electron cloud model of the atom that became a large scientific breakthrough on how an atom operates and what it consists of.

Read More
445 Words | 2 Pages

Brayden Wilson Miss VanArsdale English 9 13 November 2017 Scientist research paper When Niels Bohr was a child he went to his father’s workplace and that is what encouraged him to be a physician because he wanted to follow in his father’s steps. So when Niels was a kid his dream is to study and invent different things in his life. Niels Bohr was an important and influential figure in history that had a positive impact on the world because he discovered the atom and element seventy-two which is hafnium.

Read More
996 Words | 4 Pages

Dmitri Mendeleev was a russian Chemist who was once thrilled and excited to discover new things. As being a Chemist, Mendeleev was very fond of and addicted to his science and physics. One day Mendeleev decided to come up with his very own way to display and arrange a group of elements that exist and could really assist you. With this great idea and a lot of work and effort, the first Periodic Table was born. But since then science within itself has changed.

Read More
588 Words | 3 Pages

Chadwick repeated these experiments but with a different goal from them, to find a neutral particle. He was successful he determined that there was another particle and it had a mass of around 0.1 percent more than protons. This was incredible the world at the time, he published it in his paper called “Possible Existence of Neutron”. Soon after scientist all over accepted his findings. Later his findings let to Werner Heisenberg showing that proton-electron pairing is not possible.

Read More
1484 Words | 6 Pages

The atomic theory is the study of the nature of matter, which says that matter is made of atoms. This theory has taken more than two millennia to evolve. It was not until the late nineteenth century that technology allowed scientists to look the details parts of an atom: the proton, neutron, and electron. The Atomic Theory has many contributors such as, Democritus, Aristotle, Joseph Proust, and John Dalton.

Read More
294 Words | 2 Pages

these accomplishments was the atomic theory. Dalton was the first scientist to propose that all matter was made up of atoms. His theory was that elements consisted of very small particles called atoms. It also states, elements are pure or one of a kind; meaning all atoms in the element are identical. Although different elements had different size and mass, an element such as this is called a compound.

Read More
1087 Words | 5 Pages

The first periodic table was first introduced to us in 1869 by a Russian scientist named Dmitri Mendeleev. Mendeleev studied chemistry at the University of St. Petersburg. Mendeleev’s table had many differences from the one we use today. His periodic table was in order by atomic mass.

Read More
815 Words | 4 Pages

Max Plank’s Quantum Theory: At the time of the late 18th century, most physicists believed that there was not much more to be discovered in physics, and that they had discovered most of what was there in it. This was the time when the classical physics was mostly accepted in science. But at the time of the start of the 20th century, physicists came to know that the laws of physics weren’t valid in the atomic world.

Read More

More about Atoms Research Papers

Related Topics

Open Document