Honors Chemistry - 3rd Quarter Review Sheets Name __________________________________ Period ____ Lab Skills A. Review your Lab Safety Packet and Lab Equipment Handout. B. Review labs done this quarter including theory, techniques and calculations. Chapter 4/10: [The History of the Atom] A. For each of the following scientists: 1. write a short description of his contribution to atomic theory 2. sketch his model of the atom. Scientist Dalton Description (List ALL postulates) Thompson Rutherford Bohr deBroglie & Schrodinger Page 1 of 6 Sketch Honors Chemistry - 3rd Quarter Review Sheets (You should work from a simple periodic table since that is what will be on the exam) B. Draw the orbital diagrams (boxes) for the following: 1. sodium 2. fluorine 3. copper C. Write the electron configuration for the following: • do completely for numbers 1 - 4, • use noble gas abbreviations for numbers 5 - 6. 1. magnesium 2. phosphorus 3. neon 4. potassium 5. yttrium 6. chromium (additional questions at back of this packet) Page 2 of 6 Honors Chemistry - 3rd Quarter Review Sheets Chapter 4/10: [The Periodic Table] (You should work from a simple periodic table since that is what will be on the exam) A. Periodic Trends. For each of the following choices, circle the correct answer. 1. In the following set of elements, which element has the larger atomic radius? Se Br l 2. In the following set of elements, which element has the lowest ionization energy? K Rb Sr 3. In the following set of elements, which element shows the least active chemical behavior? (Hint – consider whether the elements are metals or non-metals) Se O S 4. In the following set of elements, which element shows the most active chemical behavior? (Hint – consider whether the elements are metals or non-metals) Al Na Mg B. Periodic Table: List an element in each of the following categories. 1. Alkali Metal _________________ 5. Actinide Series ______________ 2. f-block element _________________ 6. Halogen 3. Metalloid 7. Alkaline Earth Metal ____________ _________________ 4. p-block element _________________ ______________ 8. Noble Gas ________________ C. Circle the 3 of the following substances that are isoelectronic: Ar Br1- Ca2+ Ne continued on the next page Page 3 of 6 S2- Sc1+ Honors Chemistry - 3rd Quarter Review Sheets Chapter 11: Chemical Bonding A. Draw the Lewis dot diagram for the following elements and compounds: 1. silicon atom 2. nitrogen molecule (N 2 ) 3. water (H 2 O) 4. methane (CH 4 ) 5. ammonia (NH 3 ) 6. carbon dioxide (CO 2 ) B. For the compounds in Part A, numbers 3-6, look up the electronegativity values for the elements and determine the difference between them. Indicate the type of bond this value represents. Remember - a bond is between two elements at a time. EN Value EN Value 3. H: O: 4. C: H: 5. N: H: 6. C: O: EN Difference Bond Type C. For the compounds in question A, numbers 3-6 how many shared and unshared pairs of electrons (or electron clouds, in the case of multiple bonds) are around the central atom? What shape is each molecule? Then, considering bond type and shape, indicate if each molecule is polar or non-polar. Shared Unshared Shape 3. 4. 5. 6. Page 4 of 6 Polarity Honors Chemistry - 3rd Quarter Review Sheets Chapter 14: Solutions A. What is the molarity of a solution that contains 212.5 g of sodium nitrate in 0.3 L of solution? B. How many grams of KBr are recovered if 125 mL of a 0.10M solution is heated until dry? C. What is the molality of a solution that contains 125 g of iodine and 750. g of carbon tetrachloride (CCl 4 )? D. What is the boiling boiling point elevation if 26.90 g of picolinic acid (C 6 H 5 N 2 ) is dissolved in 0.25 kg of acetic acid? (The k b of acetic acid is 2.93 °C/m.) E. What is the freezing point depression when 31.1 g of orcinol (C 7 H 8 O 2 ) is added to 1.05 kg of benzene? (The k f of benzene is 5.12 °C/m.) Page 5 of 6 Honors Chemistry - 3rd Quarter Review Sheets F. Use the solubility curve provided to answer the following questions: 1. How many grams of KNO 3 will form a saturated solution at 45°C? __________ 2. 50 g of KCl will saturate 100 g of water at what temperature? ___________ 3. At 40°C, is a solution of 120 g of NaNO 3 in 100 g of water saturated, unsaturated, or supersaturated? ____________ Ch 4&10 Atomic Theory (Additional): Electromagnetic Radiation Visible light spectrum: A. Write the wavelength range: violet ________ nm to red _______ nm B. Which wavelength (color) has the lowest wavelength? _____ highest? _____ C. Which wavelength (color) has the lowest frequency? _____ highest? _____ D. Which wavelength (color) has the lowest energy? _____ highest? _____ Page 6 of 6