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Warm Up: November 7, 2013

Warm Up: November 7, 2013. Atoms are small! Suppose I offered you one atom of gold (Au) for every second that has passed since the B ig Bang. How much gold would you have? How much money do you think that much gold would be worth?. This is 1.5% of the 1 ounce coin.

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Warm Up: November 7, 2013

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  1. Warm Up: November 7, 2013 Atoms are small! Suppose I offered you one atom of gold (Au) for every second that has passed since the Big Bang. • How much gold would you have? • How much money do you think that much gold would be worth?

  2. This is 1.5% of the 1 ounce coin.

  3. Now divide that piece of the coin into 3,000 parts and one of those 3,000 parts would be your gold. • It would be worth about $0.21

  4. Average age of the universe: 14,000,000,000 (14 billion) or 1.4 x 1010 years • This would be 4.418x1017 seconds • And that many atoms of gold would have a mass of 0.00014458 grams. • Today, the price of gold is $46.21 per gram. • So you tell me what your gold atoms are worth….

  5. Correct HW

  6. Cool Down • Title: PToE Brace Map Two elements in that group The PToE

  7. Homework: • P. 137 #1a-c & #2a-c • Vocab Booklet: • Atomic Number • Average Atomic Mass • Period • Group • Isotope • Mass Number

  8. Explain Element Cube Project

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