Question

In: Chemistry

The electron configuration of Si is Si=1s2s2p63s23p2



The electron configuration of Si is 

Si=1s2s2p63s23p2 


a Write the set of quantum numbers of an electron in 3s orbital. 

Hint: The quantum numbers include n, l, ml and ms. 


b. What is the l value of a d orbital? Write the possible m, values for a d orbital. 


c. Determine the number of allowed subshells (different values of l) for the principal quantum level n = 4. Write the designation of each subshell (s, p, d, or f) 

Solutions

Expert Solution

a. 3s

for 3s orbital , n=3; l=0; ml= 0 and ms= +1/2 or -1/2

b.

the l value for d orbital is l=2       (note l=0 s-orbital ;l=1 p orbital)

the possible ml values are -l to +l and zero

i.e -2; -1 ; 0 ; +1 ; +2

c.

for n=4 the allowed sub shell are

l= 0 to n-1

or 0 , 1 , 2, 3

l=0 ; S-subshell

l=1; p-subshell

l=2 ; d-subshell

l=3; f-subshell


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