PPT-Atoms What is an Atom? What is the smallest thing you can think of? A cell, a virus, or

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. 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?. Bio “Life” . +. . Chemistry “Chemical Reactions”. . =. The study of chemical reactions in living things. . Why Biochemistry?. One characteristic of living things: life depends on . chemical reactions!. 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. . Matter. Has Mass=. The Amount . of Matter. in an Object. “Stuff” that . Everything. is made of!. Made of . Atoms. Has Volume=. Takes Up . Space. Don’t Sweat the Small Stuff!. What is the “Small Stuff” anyway?. Module. Alireza . Etesami. University of Memphis. 2017. Reference: http://www.ide.titech.ac.jp/~takahak/pub/ORAN/EAMlecture.pdf. Initial position and velocities. Potential energy. Lennard-Jones (LJ). Essential Questions:. What is. . the basic structure of atoms? . How is an atom’s mass calculated? . Which subatomic particles are electrically charged?. .. Essential Questions:. 4. Where are the three main subatomic particles located?. 4.1 Early Theories of . Matter (& Early Chemistry – Alchemy and Related). 4.2 Subatomic Particles & Nuclear Atom. 4.2.5 Ultimate Structure of Matter – The Standard Model (Not in Book). Section 4.1 Early Ideas About Matter. Atoms and Isotopes. What you need to know about Atoms . and Isotopes:. Matter. Molecules. Elements. Chemical reaction. Periodic Table. The Atom. Parts of an atom. Isotopes. Unstable isotopes. Scientists and discoveries. Atoms and Isotopes. What you need to know about Atoms . and Isotopes:. Matter. Molecules. Elements. Chemical reaction. Periodic Table. The Atom. Parts of an atom. Isotopes. Unstable isotopes. Scientists and discoveries. 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?. Examples:. Hydrogen. Carbon. Chlorine. Titanium. Atom. Democritus (450 B.C.). If . you kept cutting a substance in half forever, eventually you would end up with an “. uncuttable. ” particle. . John Dalton (1800). Atoms are neutral. Protons = Electrons. There are special kinds of atoms..... Ions. Isotopes. Ions. An Ion is an atom that has gained or lost ELECTRONS, so it has an overall charge. If an atom gains electrons, it’s overall charge becomes negative. If an atom loses electrons, it’s overall charge becomes positive. . -The nucleus is at the centre of the atom and contains the protons and neutrons. Protons and neutrons are collectively known as . nucleons.. The sub-atomic particles:. Protons. are positively charged . Viruses are the most primitive microorganisms infecting man. . General properties. Obligate intracellular . Possess either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), but never both . Smaller than bacteria, can be passed through the bacterial filters.