Determining Atomic Mass of Boron
Calculate the atomic mass of Boron based on the isotopic information provided for Boron-10 and Boron-11. Understand how to determine atomic mass using the abundance and mass of isotopes.
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Presentation Transcript
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 Get out Neutral Atoms Worksheet for Hmk check Objective Beanium Lab Activity
Chemistry Oct 24, 2016 Agenda Homework Review Beanium Lab Activity Assignment: - Beanium Lab Activity questions
Homework Review Element Oxygen Hydrogen Hydrogen Carbon Carbon Zinc Potassium Symbol O H H C C Zn K Z 8 1 1 6 6 30 19 A 16 1 3 14 12 65 39 #p 8 1 1 6 6 30 19 #n 8 0 2 8 6 35 20 #e 8 1 1 6 6 30 19
Homework Review Element Titanium Antimony Uranium Silver Fermium Platinum Krypfon Symbol Ti Sb U Ag Fm Pt Kr Z A 48 122 238 108 257 195 84 #p 22 51 92 47 100 78 36 #n 26 71 146 61 157 117 48 #e 22 51 92 47 100 78 36 22 51 92 47 100 78 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) Agrees with Periodic Table Agrees with Periodic Table 6.941 5. 39.947 6. 43.38% Na 7. 52.9% Al and 47.1 % O 8. 264 g carbon dioxide
Exit Slip - Homework Exit Slip: Clean up your lab space with a zero impact from when you came in. What s Due? (Pending assignments to complete.) Beanium Lab Activity questions What s Next? (How to prepare for the next day) Read Holt p84 - 88
