Physics for Scientists and Engineers
Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 36, Problem 32P

(a)

To determine

The total number of electron state for the given principal quantum number.

(a)

Expert Solution
Check Mark

Answer to Problem 32P

The total number of electron state is 32 .

Explanation of Solution

Given:

The principal quantum number is n=4 .

Formula used:

The expression to calculate the possible values of orbital number is given by,

  l=x,(0x<n)

Here x is the integer.

The expression to calculate the possible values of magnetic orbital quantum number is given by,

  m=x,(lnxln)

Here x is the integer.

Calculation:

The possible values of the orbital number is calculated as,

  l=x,(0x<4)

So, the possible value of the orbital numbers are 0,1,2,3 .

The possible values of the magnetic orbital quantum number for l=0 is calculated as,

  m=x,(0x0)

So, the possible value of the magnetic orbital numbers is 0 .

The possible values of the magnetic orbital quantum number for l=1 is calculated as,

  ml=x,(1x1)

So, the possible value of the magnetic orbital numbers is 1,0,1 .

The possible values of the magnetic orbital quantum number for l=2 is calculated as,

  ml=x,(2x2)

So, the possible value of the magnetic orbital numbers is 2,1,0,1,2 .

The possible values of the magnetic orbital quantum number for l=3 is calculated as,

  ml=x,(3x3)

So, the possible value of the magnetic orbital numbers is 3,2,1,0,1,2,3 .

The different possible combinations of (n,l,ml) for the given state are tabulated below.

    nlml
    400
    411
    410
    411
    422
    421
    420
    421
    422
    433
    432
    431
    430
    431
    432
    433

Table 1

The possible number of combination is 16 as the electron has two possible spins and the number of electronic states is 32 .

Conclusion:

Therefore, the total number of electron states is 32 .

(b)

To determine

The total number of electron state for the given principal quantum number.

(b)

Expert Solution
Check Mark

Answer to Problem 32P

The total number of electron state is 8 .

Explanation of Solution

Given:

The principal quantum number is n=2 .

Formula used:

The expression to calculate the possible values of orbital number is given by,

  l=x,(0x<n)

Here x is the integer.

The expression to calculate the possible values of magnetic orbital quantum number s given by,

  m=x,(lnxln)

Here x is the integer.

Calculation:

The possible values of the orbital number is calculated as,

  l=x,(0x<2)

So, the possible value of the orbital numbers are 0,1 .

The possible values of the magnetic orbital quantum number for l=0 is calculated as,

  m=x,(0x0)

So, the possible value of the magnetic orbital numbers is 0 .

The possible values of the magnetic orbital quantum number for l=1 is calculated as,

  ml=x,(1x1)

So, the possible value of the magnetic orbital numbers is 1,0,1 .

The different possible combinations of (n,l,ml) for the given state are tabulated below.

    nlml
    200
    211
    210
    211

Table 2

The possible number of combination is 4 as the electron has two possible spins and the number of electronic states is 8 .

Conclusion:

Therefore, the total number of electron states is 8 .

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