week 6 101110 gall chem
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homework: study for midterm on weds. do now: A helium balloon floats in the air.
What happens to the balloon after several days (if it doesn’t pop)?
aims: TLW review methods of inquiry, reflection, and social implications. TLW create an atomic model.
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Hydrogen is the smallest atom.Helium is the second- smallest atom.Atoms of helium eventually “leak” out between the LARGE molecules of latex or foil in the wall of the balloon.
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1. List how many seconds in a row you were able to stay completely silent
2. What is the name of the smallest atom or element?
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1. DO NOW, QUIZ2. REVIEW LESSON STEPS3. NOTES: ADDRESSES (LOCATIONS) OF
ELECTRONS4. PROJECT: PAIRS- DUE TOMORROW.
N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar
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ELECTRON ADDRESSES IN ORDER:◦ 1S1 1S2◦ 2S1 2S2◦ 2P1 2P2 2P3 2P4 2P5 2P6◦ 3S1 3S2◦ 3P1 3P2 3P3 3P4 3P5 3P6◦ 4S1 4S2
SHELLS, ORBITALS, FILLING ORDER GROUP PROJECTS
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shell #1: smallest, closest to nucleus:◦ MAXIMUM IS 2 ELECTRONS
shell #2: SECOND FROM THE NUCLEUS◦ MAXIMUM OF 8 ELECTRONS
SHELL #3: THIRD FROM THE NUCLEUS◦ TODAY- MAX IS 8 ELECTRONS
SHELL #4: FOURTH FROM THE NUCLEUS◦ TODAY- MAX WILL BE 2 ELECTRONS
◦ WHY? IT’S A LONG STORY!
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atommass protons electrons neutrons calcium-40.08- 20- 20- 20 carbon – 12.?? - 6- 6 6
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Name, symbol, atomic mass, atomic number, numbers of protons/ electrons/ neutrons
list electron configurations in order green dots for electrons red dots for protons yellow dots for neutrons
DUE TOMORROW