Question

1. For n = 5, l = 4, what are the possible values of and ml and ms?

2. Calculate the magnitude of the angular momentum of an electron in the n = 7, l= 5 state of hydrogen.

Answer #1

If n is your principle quantum number, then your angular
momentum quantum number, l, is l=0,1,2,.....n-1, your z-component
angular momentum ml, is ml=0, +/- 1, +/- 2,+/- 3,......+/- l, and
your electrom spin ms, is ms= +1/2 / -1/2.

So if n=5, then l = 0,1, 2, 3 & 4

For l=0, ml=0

For l=1, ml= -1, 0, +1

For l=2, ml = -2, -1, 0, +1, +2

For l=3, ml = -3, -2, -1, 0, +1, +2, +3

For l=4, ml = -4, -3, -2, -1, 0, +1, +2, +3, +4

Ms can be +1/2 or -1/2 for any electron.

n describes the shell of an atom.

l describes the subshell of an atom, l=0 is subshell s, l=1 is
subshell p, l=2 is subshell d, l=3 is subshell f and l=4 is
subshell g.

ml describes orbitals, for an s subshell (l=1) ml = 0 representing
the single orbital in the s subshell, for a p subshell ml= -1, 0,
+1 representing the 3 orbitals in the p sunshell, and for a d
subshell ml = -2, -1, 0, +1, +2 representing te 5 orbitals in the d
subshell etc.

2]

A hydrogen atom stays in the 3rd excited state (n = 4). Consider
of the quantum behavior of the electron, but ignore the quantum
behavior of the nucleus. (a) What are the possible values for the
quantum number l and what are the corresponding orbitals? Write
down the magnitude of each orbital angular momentum (in units of
ħ). (b) For each value of l, what are possible values for the
quantum number ml and the magnitude of the z component...

4. Answer the following questions: (diff=3) a. For n = 4, what
are the possible values of the angular momentum quantum number, l?
b. What subshells are possible within n = 4? c. For l = 2, what are
the possible values of the magnetic quantum number, ml? d. What
orbitals do these l and ml values correspond to? e. If ml is 2,
what are the possible values for l ? f. What is the maximum number
of electrons...

A Hydrogen atom initially in n = 3 , l = 2
, ml = -1, and ms =+1/2
state absorbs a photon and transitioned to n = 4
state.
Question: What are the possible final
quantum numbers?
A.
n = 4, l
= 2, ml = -1,
ms = +1/2
B.
n = 4, l = 2, ml = -1,
ms = +1/2
C.
n = 4 , l = 1 ,
ml = 0, ms =
+1/2
D.
n = 4, l = 3...

Question 3
Part B:How many values of ml are possible for an
electron with orbital quantum number l = 1?
Express your answer as an integer.
Part C
The quantum state of a particle can be specified by giving a
complete set of quantum numbers (n,l,
ml,ms). How many different
quantum states are possible if the principal quantum number is
n = 2?
To find the total number of allowed states, first write down the
allowed orbital quantum numbers l,...

what are the maximum numbers of electron in the following?
A)n=4, L=3 B) n=2, L=1, ML=0 C) n=3, L=2, ML=0, MS=+1/2 d) n=1,
L=0, ML=0, MS=+/-1/2

What are the possible values of n and ml for an electron in a 3d
orbital?
A) n = 1, 2, or 3 and ml = 2
B) n = 1, 2, or 3 and ml = -2, -1, 0, +1, or +2
C) n = 3 and ml = 2
D) n = 4 and ml = -2, -1, 0, +1, +2
Each of the following sets of quantum numbers is supposed to
specify an orbital. Choose the one...

Quantum numbers arise naturally from the mathematics used to
describe the possible states of an electron in an atom. The four
quantum numbers, the principal quantum number (n), the angular
momentum quantum number (ℓ), the magnetic quantum number (mℓ), and
the spin quantum number (ms) have strict rules which govern the
possible values. Identify allowable combinations of quantum numbers
for an electron. Select all that apply.
a) n=4, l=2, ml=3, ms=+1/2
b) n=6, l=6, ml= 1, ms=-1/2
c) n=3, l=1,...

1. What is the largest possible value of ml for an
electron in the n = 4 state?
2. Atoms can be ionized by thermal collisions, such as at the
high temperatures found in the solar corona. One such ion is
C+5 , a carbon atom with only a single electron. What is
the change in energy (in eV) of the first line in this ion’s
Paschen series? Consider that the ground state energy that is
necessary to ionize hydrogen...

An electron in a hydrogen atom is in a state with n = 5. Find
the orbital angular momentum and z component of the
orbital angular momentum for each possible value of ℓ and
m for the electron. (Use the following as necessary: ℏ.
Enter your answers as comma-separated lists. Give exact answers. Do
not round.)
L = ______
Lz = _______

A possible quantum combination of quantum numbers for the single
valence shell electron of K in the ground state is:
A) n = 4, l = 0, ml = 0, ms = +1/2
B) n = 5, l = 0, ml = 0, ms = +1/2
C) n = 5, l = 1, ml = 0, ms = -1/2
D) n = 5, l = 4, ml = 3, ms = -1/2
E) n = 5, l = 0, ml...

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