Chemistry – Oct 31, 2016 P3 Challenge Determine the atomic mass of Boron given the following information Boron 10 Mass: 10.012937 % Abundance: 19.9 Boron 11 Mass: 11.009305 % Abundance: 80.1 Objective – Beanium Lab Activity Get out Neutral Atoms Worksheet for Hmk check Chemistry – Oct 24, 2016 Agenda – Homework Review Beanium Lab Activity Assignment: Beanium Lab Activity questions Homework Review Element Symbol Z A #p #n #e Oxygen O 8 16 8 8 8 Hydrogen H 1 1 1 0 1 Hydrogen H 1 3 1 2 1 Carbon C 6 14 6 8 6 Carbon C 6 12 6 6 6 Zinc Zn 30 65 30 35 30 Potassium K 19 39 19 20 19 Homework Review Element Symbol Z A #p #n #e Titanium Ti 22 48 22 26 22 Antimony Sb 51 122 51 71 51 Uranium U 92 238 92 146 92 Silver Ag 47 108 47 61 47 Fermium Fm 100 257 100 157 100 Platinum Pt 78 195 78 117 78 Krypfon Kr 36 84 36 48 36 Homework Review 1. Equal 2. A = #p+#n 3. # protons 4. (Mass)(Ab) + (Mass)(Ab) (Ab in decimal form….move decimal 2 to left) 6.941 Agrees with Periodic Table 5. 39.947 Agrees with Periodic Table 6. 43.38% Na 7. 52.9% Al and 47.1 % O 8. 264 g carbon dioxide Exit Slip - Homework Exit Slip: What’s Due? (Pending assignments to complete.) Clean up your lab space with a zero impact from when you came in. Beanium Lab Activity questions What’s Next? (How to prepare for the next day) Read Holt p84 - 88
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