explain quantum no.with some examples.
Answers
Answer:
quantum numbers can be used to completely describe all the attributes of a given electron belonging to an atom, these are: Principal quantum number, denoted by n. Orbital angular momentum quantum number (or azimuthal quantum number), denoted by l. Magnetic quantum number, denoted by ml.
Answer:
There are four quantum numbers...,
Explanation:
and they are
n
,
l
,
m
l
,
m
s
. Each specifies a different meaning and its function.
n
is the principal quantum number and states the energy level of an electron. You can think of it as the electron shell number. It can only be a whole number greater than 0, i.e.
n
>
0
,
∀
n
∈
Z
.
l
is the angular momentum number and specifies the subshell
(
s
,
p
,
d
,
f
,
...
)
of an atom. It therefore determines the shape of the orbital. The conditions are such that
l
=
0
,
1
,
2
,
3
,
4
,
...
,
(
n
−
1
)
.
m
l
is the magnetic angular momentum number, and determines the number of orbitals in the subshell. The conditions are such that
m
l
=
−
l
,
(
−
l
+
1
)
,
(
−
l
+
2
)
,
...
,
−
2
,
−
1
,
0
,
1
,
2
,
...
,
(
l
−
2
)
,
(
l
−
1
)
,
l
.
m
s
is the electron spin number and states the direction spin of an electron. It only has two values and does not depend on another quantum number. Conditions are that
m
s
=
±
1
2
. Positive
1
2
means an
↑
spin while negative
1
2
designates a
↓
spin.