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madelyngv97
16.12.2021 •
Chemistry
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Ответ:
1.) l = 0 to 2 ; Total number of orbitals possible at n=3 energy level is 9
2.) if l = 1, quantum number ml can have values from (-1 to 1)
Total number of orbitals possible at l = 1 sublevel is 3
Explanation:
When n= 3, which is the principal quantum number, the angular quantum number 'l' can only take values ranging from( 0 to n-1) that is, when n=3, l can range from (0,1,2). Number of orbitals in a shell is the square of the principal quantum number,. Here 3^2 = 9. A total of 9 orbitals exist in the n=3 energy level with 1 in the 3s subshell, 3 in the 3p subshell and 5 in the 3d subshell.
The magnetic quantum number ranges from (-l to +l) therefore, with l being 1, ml can range from (-1 to 1) values -1, 0, 1. The number of orbitals in a subshell is 2(l) + 1
With l = 1;
2(l) + 1
2(1) + 1 = 3