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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What does Hund's Rule of Maximum Multiplicity say?
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That electrons will try to remain unpaired whenever possible.
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none given
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What is an important outcome of the Heisenberg Uncertainty Principle?
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The exact location of an electron cannot be pinpointed. Rather, a probable location is what is determined.
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Does it matter that you can determine the energy of an electron?
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Using the Classical System, name all of the elements that can be found in group 1A:
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1) H
2) Li 3) Na 4) K 5) Rb 6) Cs 7) Fr |
There are seven of them.
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Where is the last electron added to each element in the row of transition elements, beginning with scandium and ending with zinc?
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The last electron is added to the 3d subshell. Note, this is not the same as the valence shell!
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Is it added to the valence shell? Go check...
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What is the alternate name for "transition elements?"
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alternate name = "d block elements"
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none given
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The sum of which two quantum numbers provides a good indicator for the energy of an electron?
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The sum of "n" and "l"
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Which are the two most significant quantum numbers?
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How can you determine the number of subshells that each shell possesses?
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The number of subshells is equivalent to that of your shell number. So, if your shell number is 2, there are two subshells.
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none given
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Given quantum number values "n"=3 and "l"=2 and "n"=4 and "l"=0, determine which shell would begin to be filled by electrons first.
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Electrons would start to fill the fourth shell before they had finished filling the third shell.
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Use the sum of "n" and "l" to make your determination.
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What is the atomic mass of carbon-12?
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12 atomic mass units
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Carbon-12 is the most common form of carbon atom. It is the standard by which other atomic masses are based.
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What is the largest number of electrons that can fit into the first shell?
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2 electrons
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# electrons = 2n, squared
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What is the largest number of electrons that can fit into the second shell?
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8 electrons
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# electrons = 2n, squared
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What is the mass (in atomic mass units) of an electron?
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It is negligible (~.0005414)
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Most of the mass in an atom resides in the nucleus.
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According to the Bohr theory, what do we call a quantum of light?
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A photon.
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none given
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Name the four primary quantum numbers.
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1) "n"
2) "l" 3) "m" 4) "s" |
none given
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In an electron with the following quantum numbers, what values are possible for the quantum number "s"?
"n" = 2, "l" = 0, and "m" = -1 |
-(1/2) and 1/2
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There are always two of them.
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If quantum number "l" for an electron is 6, what values are possible for quantum number "m"?
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-6 through 6.
(So, -"l" to "l") |
In this case, there are 18 of them.
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If quantum number "n" for an electron is 5, what values are possible for quantum number "l"?
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0 to 4
(so, 0 through "n" - 1) |
In this case, there are 5 of them.
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