PPT-Democritus: The Atom

around 400 BCE Democritus thought matter could be divided into smaller and smaller pieces until a single indivisible particle is reached He named this particle the atom He proposed that atoms are of different sizes in constant motion and separated by empty spaces. A Look Into the Ultimate. ESSENTIAL QUESTIONS:. Why was an image of individual atoms considered such an important breakthrough?. How scientists discovered the component particles within atoms?. How can we possibly know anything about atomic structures?. limits on . dark . energy. Jun. 17. 2011. Geena Kim. P. Hamilton, D. Schlippe, and H. Mueller. University of California, Berkeley. Paul Hamilton. Müller group. University of California at Berkeley. . Pre-Socratic Theories of Reality. Materialism and materialist philosophers. Materialism is the philosophical belief/view-point that all of reality is made up of physical components. . According to philosophical materialists, EVERYTHING in the universe is made up of physical parts, even things like the mind and consciousness.. Mallory . Traxler. April 2013. Motivation. Continuous atom laser. Continuous, coherent stream of atoms. Outcoupled. from a BEC. Applications of atom lasers:. Atom interferometry. Electromagnetic fields. Atomos: Not to Be Cut. The History of . the Atom and the Atomic . Theory. Atomic Models. This model of the atom may look familiar to you. This is . the Bohr model. . In this model, the nucleus is orbited by electrons, which are in different energy levels. . Clare Burrage. University of Nottingham. Clare.Burrage@nottingham.ac.uk. Outline:. Chameleon dark energy. A . review of atom interferometry. Dark energy in the laboratory. Solutions to the Cosmological Constant Problem. What are the 3 major parts of an atom?. Proton . Neutron . Electron. Parts of an Atom. Another Model. SIMPLIFIED MODEL.. PROTON. Protons are positively charged particles found in the atomic nucleus. . Atoms. . are the smallest unit of matter. . Matter. . is anything that has mass and takes up space. . A . ball is matter, water is matter, even the air you breathe is matter!. What is an atom. ? (cont.). Everything made of small particles. Called . atmos. Earth, air, fire, and water. Antoine Lavoisier. Law of Conservation of Mass . Mass cannot be created or destroyed. Mass of reactant= mass products. DO NOW:. 1. 2. 3. 4. The Greek Concept of . Atomos. : . The . Indivisible Atom. . Around 440 BC, Leucippus originated the atom concept.. His pupil, Democritus (c460-371 BC) extended it . There are five major points to their atomic idea.. Atom. An . atom. is the smallest particle of an . element. that retains the . chemical properties . of that . element. .. Atoms consist of . two. regions. The . nucleus. is at the . center. of the atom and contains at least one . RADIASI ELEKTROMAGNETIK. Muatan listrik dan kutub magnetik menimbulkan gaya dalam jarak tertentu melalui medan listrik dan medan magnetik.. Medan ini merupakan bentuk penyebaran energi yang disebut gelombang, dan pengalihan energi ini dinamakan radiasi elektromagnetik.. Atoms are the fundamental blocks of matter…. Chapter Big Idea. Section 1: Early Ideas About Matter. What are the similarities and differences of the atomic models of Democritus, Aristotle, and Dalton?. Rutherford proposed that most of the mass of the atom was concentrated. . at the atom’s center. . Rutherford’s Model of the Atom. Rutherford’s experiment suggested that an atom’s positive charge is concentrated in the center of the atom .