AP Chemistry Guided Notes Summer Vodcast #2

Name: ______date: ______

  1. List the 4 main components of John Dalton’s atomic theory:
  1. Explain how Thomson discovered electrons and draw a picture of the model of an atom that was inspired by his discovery.
  1. Explain how Rutherford discovered the nucleus of an atom and draw the model of the “new” atom that was inspired by his experiments.
  1. What evidence do we have to support the existence of electron orbitals?
  1. Using the diagram below, explain what occurs at each of the 5 steps of the mass spectrometer:
  1. A sample of chlorine is run through a mass spectrometer. Use the data shown below to determine the average atomic mass of the sample of chlorine. Show your work.

Isotope / Mass / abundance
Chlorine – 35 / 34.96885268 / 0.7576
Chlorine – 37 / 36.96590259 / 0.2424
  1. What parts of Dalton’s atomic theory are no longer true? Why?
  1. Ionic compounds are always formed between a ______and a ______.
  2. Molecules are made up of ______only.
  3. Just like ionic compound, you must balance charges in ______.
  4. Cations have a ______charge because they ______electrons. Anions have a ______charge because they ______electrons.
  5. What noble gas is closest to magnesium? ______What will happen to magnesium when he becomes like that noble gas?
  6. What noble gas is closest to bromine? ______What will happen to bromine when he becomes like that noble gas?
  7. What is the correct ionic formula for when magnesium and bromine join? ______
  8. What is the name of the compound MgS? ______
  9. What does the word polyatomic mean? ______
  10. What is the rule for using polyatomic ions in an ionic formula?
  1. What is the formula for the following
  2. magnesium chlorate: ______
  3. sodium oxide: ______
  4. calcium hydroxide: ______
  5. strontium sulfite: ______
  6. barium nitrate: ______
  7. silver chloride: ______
  8. rubidium sulfate: ______
  9. What are the 3 rules for naming molecules?
  1. What are the names of my two pet guinea pigs? (extra credit opportunity here)
  2. Name the following:
  3. PCl6: ______
  4. S2Br3: ______
  5. NCl4: ______
  6. What are the 3 rules for naming acids?
  1. Name the following:
  2. H3PO4: ______
  3. HBr: ______
  4. H2SO3: ______
  5. Get the formula for the following:
  6. Hydrocyanic Acid: ______
  7. Nitric Acid: ______