QUANTUM NUMBERS

 

Element

1s

2s

2p

3s

3p

3d

4s

4p

4d

4f

5s

1.)

K

_

_

_ _ _

_

_ h _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

2.)

O

_

h

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

3.)

Ar

_

_

_ _ i

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

4.)

Br

_

_

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

5.)

Rb

_

_

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

6.)

Co

_

_

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

7.)

Se

_

_

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

8.)

B

_

_

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

9.)

P

_

_

_ _ _

_

_ _ _

_ _ _ _ _

_

_ _ _

_ _ _ _ _

_ _ _ _ _ _ _

_

** Each question below corresponds to the number in the table. **
For 1 – 3, give the four quantum numbers for the electron indicated.

1.)  n =             l =              m =            s =
2.)  n =            
l =              m =            s =
3.)  n =            
l =              m =            s =
For 4 – 9, draw in the electron with the following sets of quantum numbers.
4.)  n = 3         
l = 2      m = 0               s = + ½                        5.)  n = 3          l = 1        m = + 2        s = + 1/2
6.)  n = 4         
l = 1      m = + 1            s = - 1/2                         7.)  n = 2          l = 1        m = 0           s = + 1/2
8.)  n = 3         
l = 2      m = - 1             s = - 1/2                         9.)  n = 2          l = 1        m = - 1          s = - 1/2
  
10.)  Does an electron with this set of quantum numbers exist in the element calcium?
       n = 4        
l = 1      m = 0               s = - ½

Determine the element whose outermost electron (last electron added) is being defined by the following quantum numbers.
11.)  n = 1        
l =0       m = 0               s = -1/2             
12.)  n = 4        
l =1       m = 1               s = -1/2
13.)  n = 3        
l =1       m = -1              s = +1/2
14.)  n = 4        
l = 0      m = 0               s = +1/2
15.)  n = 3        
l = 2      m = -2              s = -1/2

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