1
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The difference between orbital angular momentum of an electron in a 4f -orbital and another electron in a 4s-orbital is
A
$$2\sqrt 3 $$
B
$$3\sqrt 2 $$
C
$$\sqrt 3 $$
D
2
2
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.33
Change Language
Which one of the following electronic arrangements is absurd?
A
n = 3, l =1, m = $$-$$1
B
n = 3, l = 0, m = 0
C
n = 2, l = 0, m = $$-$$1
D
n = 2, l = 1, m = 0
3
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.33
Change Language
Which of the following electronic configuration is not possible?
A
n = 3, l = 0, m = 0
B
n = 3, l = 1, m = $$-$$1
C
n = 2, l = 0, m = $$-$$1
D
n = 2, l = 1, m = 0
4
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.33
Change Language
The number of unpaired electrons in Ni (atomic number = 28) are
A
0
B
2
C
4
D
8
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