Chemistry 312 Warm-ups 2nd Marking Period Warm-up #1 11/16/09 A 40mg sample of Radon-222 decays to 3mg in 14.2 days. What is the half-life of Radon-222? Warm-up #2 11/18/09 What is the band of stability and what does it have to do with predicting the radioactivity of an atom? Warm-up #3 12/02/09 What is the electromagnetic spectrum? What is the atomic emission spectrum? What is electromagnetic radiation? What is the difference between a photon and a quantum? Warm-up #4 12/03/09 List the waves that make up the electromagnetic spectrum starting with the lowest frequency wave. _______________________________________ Warm-up #5 12/09/09 Draw the orbital diagram for Si. Write the electron configuration for Ca. Warm-up #6 12/10/09 Write the electron configuration for the following elements using Noble gas notation: Mg P Sn Warm-up #7 12/11/09 Write the electron-dot (Lewis-dot) structure for the following elements: F K H C Warm-up #8 12/14/09 A photon has a wavelength of 6.72 x 10-6 m. Calculate its energy. Warm-up #9 1/5/10 Determine if the description is the property of a metal, nonmetal, or metalloid. shiny usually a gas reacts by giving up an electron a semiconductor has a high number of diatomic elements Warm-up #10 1/6/10 List one thing about each person that you feel is important. Mendeleev Lavoisier Dobereiner Newlands Moseley Warm-up #11 1/7/10 Define the following: Periodicity The Periodic Law Octet Rule Warm-up #12 1/14/10 Name the following compound: Mg2F KOH (NH4)2SO4 Warm-up #13 1/19/10 Warm-ups due on 1/26/10. You need 14. Define the following terms: 1. Cation 2. Anion 3. Monatomic Ion 4. Polyatomic Ion 5. Oxidation number Warm-up #14 1/20/10 Write the electron configuration for the following: Na Na+ Cl Cl- Warm-up #15 1/22/10 What is the difference between an ion bond and a covalent bond?