Chemistry – Nov 2, 2017 P3 Challenge- Objective –

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Presentation transcript:

Chemistry – Nov 2, 2017 P3 Challenge- Objective – 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 Recall Atomic mass = (Mass)(Abund) + (Mass)(Abund) + etc… Objective – Beanium Lab Activity Get out Atoms, Ions and Mass Worksheet for Hmk check

Chemistry – Nov 2, 2017 Agenda – Homework Review Beanium Lab Activity Three isotope names of beans are like chocolates: White, Milk, and Dark Assignment: - Beanium Lab Activity questions

Homework Review Element Symbol Z A #p #n #e charge Oxygen 16O2- 8 16 10 2- Hydrogen 1H 1 3H+ 3 2 + Carbon 14C 6 14 12C 12 Zinc 65Zn 30 65 35 Potassium 39K+ 19 39 20 18

Homework Review Element Symbol Z A #p #n #e charge Titanium 48Ti2+ 22 26 20 2+ Antimony 122Sb 51 122 71 Uranium 238U 92 238 146 Silver 108Ag 47 108 61 Fermium 257Fm 100 257 157 Platinum 195Pt 78 195 117 Krypton 84Kr 36 84

Homework Review 1. Equal , Z = #p 2. A = #p+#n 3. # protons OR atomic number OR Z 4. charge = #p – #e Show work for 5 and 6: (Mass)(Ab) + (Mass)(Ab) (Ab% in decimal form….move decimal 2 to left) 5. Li = 6.941 amu Agrees with Periodic Table 6. Ar = 39.947 amu Agrees with Periodic Table 7. 43.38% Na 8. 52.9% Al and 47.1 % O 9. 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