PPT-Atom, Ion, or Isotope? Atoms

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 its overall charge becomes negative If an atom loses electrons its overall charge becomes positive . Section 4.2. Objectives. State the three . subparticles. of atoms. State the charges of the . subparticles. Describe the composition of an atom. Atom. Fundamental particles which make up matter. The smallest particle of an element that retains (keeps) its identity in a chemical reaction. Chapter 2 BLB 12. th. Expectations. Recognize important steps in the discovery of the atom and its structure.. Work with isotopes.. Learn about the periodic table.. Differentiate between molecular and ionic compounds.. 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. Atoms, Orbitals & Bonding Topics:. Very quick history of chemistry…. What is organic chemistry?. Atomic models: nuclear to quantum. All . about . orbitals. How . orbitals fill: electron . configuration. Isotopes. Isotopes are atoms that have the same number of protons but different numbers of neutrons. Most elements in the first two rows of the periodic table have at least 2 isotopes with one being more common than the other. Monoatomic i on Ion Name Ion Old Name New Name H + hydrogen ion /proton Cr 2+ chromous ion chromium (II) ion Li + lithium ion Cr 3+ chromic ion chromium (III) ion Na + sodium ion Mn 2+ manganous ion Darrick. Chang. ICFO – The Institute of Photonic . Sciences. Barcelona, Spain. School on Quantum Nano- and Opto-Mechanics. July 8, 2016. Motivation. Optomechanics: unprecedented levels of control over interactions between motion and light. 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?. 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.). Objectives: . Understand the difference between relative and absolute time.. Summarize principles scientists use to determine the age of rocks.. Relate conservation of matter to radiometric dating.. How do you think scientists tell the age of fossils?. 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 are composed of protons, neutrons and electrons. These subatomic particles are charged….. Atoms make elements… Elements can’t be broken down into anything simpler. . Examples:. Carbon= C. Å. . . How many silver . atoms could be arranged side by side across the diameter of a dime?. Solution. The unknown is the number of silver (Ag) atoms. Using the relationship 1 Ag atom = 2.88 . Å. as a conversion . the ionic . charge would be . 3–, [(7+) . + . (10–) . = . 3–]. . The ion, written as . N. 3–. , . is . the . nitride. . ion.. b. . The . element with 20 protons is calcium. In an ion of calcium with 18 electrons, .