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47 Cards in this Set
- Front
- Back
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What is Bohr's Planetary Model?
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Said e- orbit the nucleus, and are in energy levels
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What was not quite right about this model?
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The e- don't orbit the nucleus
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If an energy level has more energy, is it less or more stable?
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Less
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What is the max number of e- that can occupy an EL?
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2n^2
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What are the different energy sub-levels?
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S, P, D, F
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How many orbitals does each have?
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S=1, P=3, D=5, F=7
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What is the max number of e- in one orbital?
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2
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Do electrons want to be close to the nucleus?
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Yes
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When you get to the D group while making an electron configuration, what do you do?
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You do n-1 for the orbital
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When you get to the F group while making an electron configuration, what do you do?
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You do n-2 for the orbital
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What is Hund's Rule?
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Electrons are lazy, want to fill up energy level as close to nucleus as possible
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What is Pawli's Exclusion Principle?
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Spin of electrons can't be 2 exact electrons in the same place at the same time
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KNOW ORBITAL NOTATION, ELECTRON CONFIGURATION, AND NOBLE GAS CONFIGURATION
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NOTES
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What is a ground state and what is a excited state?
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Ground state, all the orbitals are half full, excited one is full, one is half full and one is empty
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KNOW DOT STRUCTURE
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NOTES
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Who first came up with the periodic chart by atomic mass?
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Mendeleuth
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Who then rendered it to be by atomic number or number of protons?
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Mosely
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What is group 1 called?
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Alkoline metals
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What is group 2 called?
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Alkaline earth metals
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What is a metal?
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-Good conductor of heat and electricity
-luster -malleable -ductile -look alike |
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What is a non-metal?
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-poor conductors of heat electricity
-brittle -look dif |
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What is the S-block called?
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Representative metals
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What is the D-block called?
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Transition metals
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What is group 17 called?
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Hallegens
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What is group 18 called?
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Noble gases
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What is the P-block called?
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Representative non-metals
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What is period 6 called?
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Lanthanide series
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What is period 7 called?
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Actanide series
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What is the F-block called?
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Rare/Inner Transition Metals
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What are columns and rows called?
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Columns=groups, rows=periods
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When you go down the chart, Atomic radii go...
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Up
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When you go across the chart, atomic radii go...
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Down
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When you go down the left-side chart, metal properties go...
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Up
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When you go across the chart, metal properties go...
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Down
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When you go down the right side of the chart, metal properties go...
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Down
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Why does the Atomic radii decrease when you go across?
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B/c greater effective nuclear charge, greater pull on electrons making radius smaller (protons)
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What is the octet rule?
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Atoms want a full outer energy level, usually this means 8 valence e-'s
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What does the ionic radii do?
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Positive=smaller, negative=bigger
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Which is smaller, Na+ or Mg2+?
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Mg2+
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Which is bigger, S2- or Cl-?
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S2-
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What is ionization energy?
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Amount of energy required to remove an e-
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What is endothermic and what is exothermic?
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Endo=requires energy or heat for reaction
Exo=reaction releases energy or heat |
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Is it easier to remove the 1st electron or 2nd? Why?
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1st, because it's furtherest away from the nucleus and has less energy pulling it towards the nucleus
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When you go down the chart, IE goes...
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Down
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When you go across the chart, IE goes...
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Up
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What is electron affinity?
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Amount of energy involved when an e- is added to an atom
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What trend does it have?
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Same as IE
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