Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/17

Click to flip

17 Cards in this Set

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

(So, -"l" to "l")
In this case, there are 18 of them.
If quantum number "n" for an electron is 5, what values are possible for quantum number "l"?
0 to 4

(so, 0 through "n" - 1)
In this case, there are 5 of them.