WorksheetsElectron Configuration & Quantum Mechanics
Total questions: 23
Worksheet time: 12mins
Two electrons orbiting an atom form a pair. If one of them has a spin of +1/2, what is the spin of the other electron?
0
+1/2
-1/2
There is no way to know
Which of the following is NOT a quantum number?
Magnetic quantum number
Spin
Mass
There is no way to know
Which atom matches this electron configuration? 1s2 2s2 2p6 3s2
Neon
Magnesium
Aluminum
Potassium
Which atom matches this electron configuration? 1s2 2s2 2p6 3s2 3p6 4s2 3d10
Zinc
Copper
Nickel
Germanium
How many electrons does Silicon contain?
14
28
2
4
At most, how many electrons can an orbital hold?
1 electron
2 electrons
3 electrons
4 electrons
After filling the 5s orbital, electrons would fill which orbital next?
5p
3f
5d
4d
How many unshared pairs of electrons are there in this orbital diagram?
2
4
6
8
What does the Principal Quantum Number, n, indicate?
Energy of the electron
The orbital orientation
Sub-level
The spin of the electron (clockwise or counterclockwise)
What does the Angular Quantum Number (l) indicate?
Energy of the electron
The orbital orientation
Sub-level
The spin of the electron (clockwise or counterclockwise)
What does the Magnetic Quantum Number (m) indicate?
Energy of the electron
The orbital orientation
Sub-level
The spin of the electron (clockwise or counterclockwise)
What does the fourth quantum number indicate?
Energy of the electron
The orbital orientation
Sub-level
The spin of the electron (clockwise or counterclockwise)
What is the shape of the p-orbital?
A sphere
Peanut or dumbbell shaped
Clover or flower shaped
Cookie shaped
For l = 3, which block is the orbital in?
s
p
d
f
What are the possible values of m^s?
0 and 2
0 and 1
+1/2, -1/2
1 and 2
