chapter 5 quantum numbers part 2. the third quantum number the third quantum number identifies the...
TRANSCRIPT
Chapter 5
Quantum Numbers
Part 2
The Third Quantum Number
• The third quantum number identifies the orbital that the electron is in.
The Third Quantum Number
• The third quantum number identifies the orbital that the electron is in.
• An orbital is an area within a sublevel that can hold up to two electrons.
An “s” sublevel has one orbital
A “p” sublevel has three orbitals
A “d” sublevel has five orbitals
An “f” sublevel has seven orbitals
The 4th Energy Level
• n = ?
The 4th Energy Level
• n = 4
The 4th Energy Level
• How many sublevels are present and what type are they?
The 4th Energy Level
• How many sublevels are present and what type are they?
• Four sublevels: s, p, d, f
The 4th Energy Level
• How many orbitals are present?
The 4th Energy Level
• How many orbitals are present?
• n2 = (4)2 = 16
The 4th Energy Level
• What is the maximum number of electrons?
The 4th Energy Level
•What is the maximum number of electrons?•2n2 = 2(4)2 = 32
The Fourth Quantum Number
The Fourth Quantum Number
• Also called the spin quantum number.
• Can be either +1/2 or -1/2.
The Fourth Quantum Number
• Also called the spin quantum number.
• Can be either +1/2 or -1/2.
• Specifies the direction of spin of the electron on its axis.
The Fourth Quantum Number
• Also called the spin quantum number.
• Can be either +1/2 or -1/2.
• Specifies the direction of spin of the electron on its axis.
• Spins are designated up or down.
Electron Spin
• Opposite spins produce opposite magnetic fields.
+1/2 -1/2
What sublevel is the first to be filled with electrons?
What sublevel is the first to be filled with electrons?
O
Which sublevel listed contains orbitals of the highest energy?
Which sublevel listed contains orbitals of the highest energy? O