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Ch. 3 Review Game

Ch. 3 Review Game. If you use this to study, remember to do it as a slide show so that you don’t see the answer until you’ve already committed to your answer. It doesn’t do you any good to just read it and “see” the correct answer. You’ve gotta commit!. Test Topics. Vocabulary

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Ch. 3 Review Game

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  1. Ch. 3 Review Game If you use this to study, remember to do it as a slide show so that you don’t see the answer until you’ve already committed to your answer. It doesn’t do you any good to just read it and “see” the correct answer. You’ve gotta commit!

  2. Test Topics • Vocabulary • Reading and Writing Universal Notation • Understanding the parts of the atom, their masses (in AMU) and functions • Isotopes and Ions, including the meaning of average atomic mass • Organization of the Periodic Table • Density Calculations and using density to identify substances • Dimensional Analysis

  3. Clouds of these surround the nucleus of an atom. What are they? (100 points) • Electrons • What is the approximate mass of an electron in AMU (atomic mass units)? (50 points) • Zero (or 1/2000)

  4. What are the subatomic particles that live in the nucleus of an atom? (100 points) • Protons and Neutrons • What is the mass of Protons and Neutrons in AMU? (50 points) • 1

  5. What are the charges of Protons, Neutrons and Electrons (3 parts : 150 points) • Protons: +1, Neutrons: Neutral, Electrons: -1 • The number of which subatomic particle determines which isotope of an element you have? (50 points) • Neutrons

  6. The number of which subatomic particle determines what element an atom is? (50 points) • Protons • Which number on the periodic table represents the number of protons in an atom? (100 points) • The atomic number

  7. The mass number is equal to the sum of the ________ and _______ in an atom. (100 points) • Protons and Neutrons • Carbon’s atomic number is 6. Which isotope has 7 neutrons? (100 points.) • Carbon – 13 or 13C

  8. What is the Atomic Number of Scandium (50 points) • 21 • How many protons does Scandium have? (50 points) • 21 • How many electrons does Scandium have? (50 points) • 21

  9. What is the number of neutrons in a typical Scandium atom? (100 points) • 24 • How many neutrons does have? (100 points) • 12

  10. How many electrons are in ? (200 points) • 18 • How many electrons are in ? (150 points) • 54

  11. How many Neutrons are in ? (200 points) • 36

  12. How many elements are in a molecule of Sulfuric Acid: ? (200 points) • 3 • How many atoms are in a molecule of Sulfuric Acid: ? (200 points) • 7 • List the elements in Sulfuric Acid. (100 points) • Hydrogen, Sulfur, Oxygen

  13. Why isn’t the atomic mass of Zinc (65.38) a whole number? (300 points for a fully complete answer – write it out!) • The average atomic mass is a “weighted average” of the different stable isotopes of an element, in the same proportion that they occur in nature.

  14. Elements in the same ___________ (group or period) tend to have the same physical and chemical properties. (100 points) • Group • Why would it be unusual to find a clump of pure sodium down by the creek at MICDS? (200 points) • Sodium is an Alkali Metal and is highly reactive with water. Even if pure sodium got there somehow it would disappear after the first rain.

  15. Universal Notation • Indicate the following atom using universal notation: Nitrogen with 6 Neutrons and 10 electrons. (300 points)

  16. Universal Notation • Indicate the following atom using universal notation: Magnesium with atomic mass of 26 and 10 electrons. (300 points)

  17. In your basement you find a cylindrical pipe made of shiny, metallic substance that has a mass of 3.54 kg. You measure its volume using the water displacement method and find out it is .396 L. Calculate its Density in g/mL. (300 pts.) • 8.94 g/mL • Based on the color you suspect that the pipe is made of copper. Is your suspicion correct? (100 pts.) • Yes

  18. Final Round – for Everybody • A snail is traveling 5cm every 30 seconds. Calculate its speed in kilometers per hour. (300 points if you show full dimensional analysis with units canceling. 200 points for correct answer without all work shown.)

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