PPT-Electron Configuration Atomic Models and Energy Levels

Models of the AtomHistory in Models Democritus 450BC GR smallest bit that is still that element Joseph Proust 1794 FR proposed that compounds form in definite proportions Prousts experiments and law influenced Dalton. Electron Configurations. The way electrons are arranged in atoms. Energy Levels (Principle Quantum Number – n). First energy level. Only s sublevel (1 s orbital). Only 2 electrons. 1s. 2. Second energy level. Application. Property. Metal. Non-metal. Colour. Metals can be polished to a high gloss. Mercury is used in the manufacture of mirrors. Some paints which are used as interior paints are lustreless.. cont’d. Ms. McGrath . Chemistry 11. Aufbau. . principle. States that in going from a hydrogen atom to a larger atom, you add protons to the nucleus and electrons to orbitals . You start at the orbitals having the lowest energy level and fill them, in order of increasing energy, until you run out of electrons. Chapter 5. The scale model shown is a physical model. However, not all models are physical. In fact, several theoretical models of the atom have been developed over the last few hundred years. You will learn about the currently accepted model of how electrons behave in atoms.. Reminder: A.S. 13.1.5-13.1.7 due . Monday 3/23/15. A.S. . 13.1.8-13.1.13 . due Tuesday . 3/24/15. WebAssign. Quantum #3 due Tuesday . 3/24/15. When a gas is heated to a high temperature, or exposed to a large electric field. DO NOW. Pick . up your paperwork. Pick up two handouts. Get out Electron Configuration Notes, your Blank Periodic Table, and your green periodic table.. RULES. Aufbau. Principle. Each electron occupies the lowest energy orbital available. Electrons are added from the ground state up. Electrons fill in increasing energy order.. Mrs. Medina. 1. Why do metals glow when heated?. 2. Models of the Atom. A model should explain not just what the material is made of (composition) but also how it is going to behave (changes).. Rutheford’s. 2. Electron Configuration. An . “electron configuration”. of an atom is a particular distribution of electrons among available subshells. . The . notation for a configuration lists the . subshell . e-mail: . upali@latech.edu. Office: . CTH 311 Phone 257-4941. Office Hours: . M,W 8:00-9:00 & 11:00-12:00 am; . Tu,Th. , F . 9:30 . - . 11:30 . a.m. .. . April 4 , 2017: Test 1 (Chapters 1, 2, 3, 4) . 2011/2012. The atomic structure. The atom. Electron arrangement. Electron configuration. Mass Spectrometer. The atom. State the position of protons, neutrons and electrons in the atom.. State the relative masses and relative charges of protons, neutrons and electrons. . Chemistry. Basics of the Atom . Subatomic. Particle. Charge. Location in. the Atom. Mass. a.m.u.. : unit used to measure mass of atoms. “atomic mass unit”. proton. neutron. electron. 1 . 0. 1–. in. Atoms. 1. I Can…………. Describe the Bohr Planetary Model of an atom. Describe light and how atoms emit light ( atomic emission spectra). Describe ground state vs. excited state. Describe the quantum mechanics model of an atom – 3 parts. Mrs. Medina. 1. Why do metals glow when heated?. 2. Models of the Atom. A model should explain not just what the material is made of (composition) but also how it is going to behave (changes).. Rutheford’s. use flame tests to provide evidence . that energy is absorbed or released in discrete units when electrons move from one energy level to another . explain how flame tests provide evidence . that energy is absorbed or released in discrete units when electrons move from one energy level to another .