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JEE Main Chemistry Class 11 Structure of Atom Part 1 Questions
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Question : 46
Total: 100
Which of the following combination of statements is true regarding the interpretation of the atomic orbitals?
[Jan. 9,2019 (II)|]
An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.
For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number.
According to wave mechanics, the ground state an- gular momentum is equal to
h
2
π
The plot of
ψ
vs
r
for various azimuthal quantum numbers, shows peak shifting towards higher r value.
(a) (a), (d) (b) (a), (b) (c) (a), (c) (d) (b), (c)
Validate
Solution:
(a) Angular momentum
(
L
)
=
n
h
2
π
Therefore, as
n
increases,
L
also increases.
(b)
r
∝
n
2
z
(c) For
n
=
1
,
L
=
h
2
π
(d) As
l
increases, the peak of
ψ
vs
r
shifts towards higher '
r
' value.
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