Question

Explain these 2 answers

1. According to the Aufbau
principle, what are the values of principal quantum number
(*n*) and angular momentum quantum number (*l*) for
the sub-level that is filled **AFTER** the 4*s*
orbital?

A. *n* = 3, *l* = 2
(Explain Please)

2. The equation represents the electron affinity of nitrogen (N)?

A. N (g) + e⁻ → N⁻ (g) (Explain Please)

Answer #1

**1. Aufbau principle = the filling of electrons in
orbitals takes place from lower energy orbitals to higher energy
orbitals.**

**in energy of orbital depends upon n+l
value.**

**if its same for two orbitals, then higher the n value
higher the energy.**

**so that after 4s orbital electrons enters into 3d
orbital.( 4s - orbitral n+l = 4 , 3d - orbital n+l =
5)**

**2.**

**A. N (g) + e⁻ ---> N⁻ (g)**

**electron affinity = 'the amount of energy released when
an electron added to neutral gaseous atom'.**

For the 3d state (orbital) of the hydrogen atom, the principal
quantum number n=3. The orbital quantum number l = 2. For an
electron with these quantum numbers, what is the smallest angle (in
degrees) that an electron's spin axis (angular momentum axis) can
make with respect to an applied magnetic field?

Explain which characteristics of an electron are described by
the principal quantum number and the angular momentum number.
Predict why the principle quantum number could never be zero or a
negative number.
Please Type Answer and No Plagiarism!

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,...

1) A quantum harmonic oscillator with frequency
ωcontains 41 electrons. What is the energy of the
highest-energy electron? Assume that the electrons are in the
lowest states possible.
2 a) An atom has a total of 18 electrons. What is the principal quantum number of the
outermost shell?
2 b) How many electrons
does the outermost shell shell contain?
3) Which of the following represents the possible range of
integer values for the magnetic quantum number?
a) 1 to l...

Which of the following states of the hydrogen atom, as defined
only by the principal quantum number, orbital angular momentum
quantum number, and magnetic quantum number, is allowed?
a.
n=0, l =2,ml =1
b.
n=5, l =2,ml =3
c.
n=0, l =2,ml =2
d.
n=5, l =2,ml =0
e.
n=2, l =2,ml =0

How to find the spacing of values as a fraction of magnitude of
orbital angular momentum - any help on question c will be great I
have done the first 2 questions so if they're wrong let me know
2. A classical electron moves in a circle of radius 10 cm with
velocity 10 cm/s.
(a) What is the value of the quantum number l which gives a
quantized angular momentum close to the angular momentum of this
classical electron?...

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 =
4?
To find the total number of allowed states, first write down the
allowed orbital quantum numbers l, and then write down the number
of allowed values of ml for each orbital quantum number. Sum these
quantities, and then multiply by 2 to account...

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, and then write down the
number of allowed values of ml for each orbital quantum
number. Sum these quantities, and then multiply by 2 to account...

The electron in a hydrogen atom with an energy of -0.544 eV is
in a subshell with 18 states.
A. What is the principal quantum number, n, for this atom? n
=
b. What is the maximum possible orbital angular momentum this
atom can have? L=
c. Is the number of states in the subshell with the next lowest
value of ℓℓ equal to 16, 14, or 12?
d. explain part (c.)

1.
What quantum numbers specify these subshells?
7s
N=?
l=?
2. Rank these elements according to electron affinity: Cl Kr
Al

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