Subatomic particle

Theory Essay Even as long ago as 400 BCE people began to believe in the atomic theory. The first step in discovering the atomic theory took place in the late 1800’s with John Dalton an ancient Greek. The mass number is the same number of particles in the nucleus, which is sometimes referred to as Dalton (DA). (Book) Democritus stated that all matter was made up of atoms, which he called atomos. (Early Ideas Prezi) Aristotle seemed to disagree with him. Democritus said that atoms moved…

Introduction: Quantum physics, also known as quantum mechanics, is the branch of physics that uses quantum theory to predict and describe the properties of a physical system. While chemistry is the science of composition, properties, structures, and reactions of matter; it is also known as the ‘central science’. While reading the book Alice in Quantumland by Robert Gilmore, one is able to link the two together, causing a curiosity to learn more. It is amazing to see how the two correlate and…

observable universe. The first galaxies formed around 13.5 billion years ago after the big bang and the dark ages. NASA states that, “After the Big Bang, the Universe was composed of radiation and subatomic particles.” There are two theories about what happened next. The first theory is that small particles slowly team up and gradually form stars, star clusters, and eventually galaxies. The second theory states that the universe first organize as immense clumps of matter that later subdivided…

Lithium is the chemical element of atomic number 3, a soft silver-white metal. It is the lightest of the alkali metals. The two main parts of every atom are neutrons and protons. The three main subatomic particles that form an atom are protons, neutrons, and electrons. Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center…

everything is made up of these. Then around 1800 John Dalton brought up. He did many experiments and concluded that gases must consist of tiny particles in constant…

Composition of the universe; What it is made of? How is the solar system expanding? What is a black hole? How do planets form? All of these questions are pretty basic, but there is more to this universe, and how it formed, than you think. Scientists have been trying to find out the answers to all these questions, but it still is not enough for a good explanation. Without the understanding of all these questions, it is impossible to come to any firm conclusions about how the universe evolved. For…

Call it what you will. An artificial forest. A hide-and-seek campground. A scientific laboratory. Maybe even Owens Valley Long Wavelength Array. Exciting discoveries are taking place here in Owens Valley. A large array of radio telescopes, designed in the shape of trees, lay scattered across the desert floor, making it look just like a dry forest, artificially. Of course, it would be nice to play a game of hide-and-seek there, hiding between 288 distinct radio antennas under the warm sun.…

Principle: By using a scanning device to detect positron (subatomic particles) emitted by the radionuclide in the organ or tissue being examined. A PET scan uses a radioactive drug (tracer) to show this activity. The radioactive drug may be injected, swallowed or inhaled, based on which organ or tissue is being evaluated by the PET scan. Positrons are emitted by a breakdown of the radionuclide then gamma ray is created and the scanner then detects the gamma rays a computer analyses the gamma…

A life at IU Bloomington will consist of long and arduous nights of studying and learning. Luckily, I happen to be someone who finds pleasure in a busy lifestyle. At IU Bloomington, I plan on studying within the College of Arts and Sciences in the two academic subjects that entertain and challenge me the most: chemistry and politics. Once bored out of my mind in a simplistic and dull regular chemistry course, I now find myself in the midst of AP Chemistry. Originally petrified by taking on Lake…

space are neutrons and protons that constantly jiggle. Neutrons are uncharged particles that add mass to the nucleus without adding a charge. The protons are positively charged particles that are also located in the nucleus and symbolized as p+. The second part of an atom is the electron cloud. The electron cloud is a cloud of electron which surrounds the nucleus. The electrons are the third type of subatomic particle- along with protons and neutrons. Located outside of the nucleus,…