Q2: Week 4 – Archive
Week of 12/1 – 12/5
12/1 – Monday – period 7/8 –
1: Complete DOG 3 –
2: Atomic Structure – Review of forms/ collect notes,
1: Please watch Lecture 2.10 (part 1 and 2) below:
2: Complete the worksheets with me in the video.
3: Review with keys.
4: RAT 23 tomorrow (Atomic Models with scientists names, Lecture 2.10)
12/2 – Tuesday – period 7/ –
1: Rat 23 – atomic models/subatomic particles in atoms and ions
2: Start isotopes
Atomic Structure 3 – Isotopes 2012.pdf key
1: Please view lecture 2.11R -Isotopes and the weighted mass problem.
2: Follow along with the Atomic Structure 3 – Isotopes 2012.pdf worksheet.
3: Please complete the backside with the key posted above.
12/3 – Wednesday – period 7/8 –
1: RAT 24 – isotopes –
2: Particle Yell Quiz –
We are half done with Unit 2!
HW: CAT 7 take home – due Monday
For my students in class I forgot to give you the second sheet to the CAT. It is posted below:
PLease toss ou the one I gave you and use the quiz posted below. Sorry.
You will be given 2 chances to complete this quiz. I will grade it the first time and give you an opportunity to resubmit after you fix your mistakes. The second submission will be final and what ever grade you get on it will your grade on the CAT.
Please use this form for the CAT 7:
12/4 – Thursday – period 7/ –
1: Bohr Model/ light demos
2: No RAT today
– This demonstrated how the different colors of light have unique energy levels. The Red/yellows have the lowest energy and the blue Violet has the highest energy. The higher energy light is getting trapped (or is scattered more) as the beaker thickens ( as the chemical reaction continues). The light shining through the beaker is made of lower energy light that can get through the thickening beaker because it scatters less. (Blue/Violet light has more energy to scatter because it has a shorter wavelength and higher frequency.
The color of the sun changes at sunset because light from the sun has to travel through more of the atmosphere and thus the higher energy light cannot get through just like the demo.
Phosphorescence Demo :
This demonstrated that only a certain light colors have enough energy to make the glow in the dark substance glow. Only the blue light stick had high enough energy to “excite” the paper. The green and red light stick did not have enough energy.
This also demonstrates that the paper can only accept certain energies to glow. This is what I will be getting into tomorrow.
1: Please work on your CAT 7 (posted above on wednesday).
Your first submission should be in by Friday..
12/5 – Friday – period 7/8-
1: Bohr model continues-
2: Review sunset demo/phosphorescence demo and light sticks/Ruben’s Tube
3: Plank, Einstein, Bohr
4: Bright Line spectrum
5: Absorbtion spectrum
6: Mr. stable / Mr. Unstable
At this point you need to add to your notes that the Bohr model was:
A) A planetary model where electrons (nuru) existed in orbits around the nucleus (big momma).
B) The electrons are quantized: they need specific amount of energy to move from a lower energy orbit (closer to the nucleus) to a higher one (farther away from the nucleus). That same energy that was absorbed is what is released because the now excited electron is unstable and WILL give it off Energy like Mr. Stable to become stable (move back to it original position). The energy given off is the energy that it released and it will be in form of a specific color of light.
C) Bohr explained the light emitted by Hydrogen as electrons (after they get excited) jumping back back to their positions. His model was the first to have electrons organized by orbits that differed in energy or proximity to the nucleus.
We started looking at three elements/compounds Bright line sprectrum.
1: Please complete CAT 7 and enter the answers into the form.