1 A. What is the notation for the subshell in which n = 5 and l = 3? 1 B. How ma

Question

1 A. What is the notation for the subshell in which n = 5 and l = 3?

1 B. How many orbitals are in this subshell?

2. Each of the following is not a possible set of quantum numbers. In each case, which of the quantum numbers is not consistent with the others or is just wrong?

A. n = 2
= 1
ml = -1
ms = 0

which is incorrect?

B. n = 4
= 2
ml = 0
ms = 0

Which is incorrect?

3.

State which of the following sets of quantum numbers would be possible and which impossible for an electron in an atom.

not permissible

permissible

not permissible

permissible

not permissible

permissible

not permissible

permissible

B. n = 4
= 2
ml = 0
ms = 0

Which is incorrect?

3.

State which of the following sets of quantum numbers would be possible and which impossible for an electron in an atom.

a n = 1, l = 0, ml = 1, ms = + 1/2

not permissible

permissible

b n = 3, l = 2, ml = -1, ms = - 1/2

not permissible

permissible

c n = 1, l = 0, ml = 0, ms = - 1/2

not permissible

permissible

d n = 4, l = 2, ml = -3, ms = + 1/2

not permissible

permissible

Explanation / Answer

n = 5 indicate principle quatum number so shell number = 5
l = 3 indicates the subshell number ( l = 0,1,2,3,....(n-1)) and it is f
answer is 5f
any f subshell consists of 7 orbitals
n = 2, = 1, ml = -1, ms = 0
ms is always either -1/2 or +1/2 and cannot bezero.
n = 4, = 2, ml = 0, ms = 0
ms is always either -1/2 or +1/2 and cannot bezero.
answer : d
n = 4, l = 2, ml = -3, ms = + 1/2
ml vaue is always -l....0...+l and cannot exceed the l value.so this is not possible set of quatum numbers.

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