Textbook 2.19 (a)

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Rachel Caprini 1E
Posts: 21
Joined: Wed Sep 21, 2016 2:59 pm

Textbook 2.19 (a)

Postby Rachel Caprini 1E » Fri Oct 21, 2016 1:27 am

Can someone explain what 2.19 a is asking/ explain what the answer means?
2.19 a.) How many values of the quantum number l are
possible when n=7?

Isayan_Natalie_3L
Posts: 14
Joined: Wed Sep 21, 2016 2:56 pm

Re: Textbook 2.19 (a)

Postby Isayan_Natalie_3L » Fri Oct 21, 2016 9:38 am

The question is asking for how many different electron orbitals (l) can exist when the quantum number (n) is equal to 7. The relation between the value of n and l is that the maximum value of l is n-1. Since the lowest value of n is 1,that means the lowest possible value of l is 0 (corresponding to the s electron orbital). l starts at 0 and continues to whatever value n-1 happens to be. In this case, n-1 is 6. That means l can be 0, 1, 2, 3, 4, 5,and 6 for n=7. There are seven different values that l can be when n=7.


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