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WorksheetsXI Chemistry Unit - 2 Part - 4A
Total questions: 10
Worksheet time: 5mins
How many orbitals are possible in the 4th energy level?
1
4
16
9
The wave functions corresponding to the Eigen values are called _________ orbitals.
atomic
molecular
compound
none of these
The maximum number of electrons in an orbital is given by the formula__________.
2(2l+1)
l+1
n+l+1
none of these
For the principal quantum number n = 4, it is possible to have
Only s orbital
only s, p, d and f orbital
only s and p orbital
only s, p and d orbital
A set of orbitals for which the quantum number l = 2 is
3-fold degenerate
7-fold degenerate
5-fold degenerate
none of these
What is the designation of the sub energy level if n=3 and l=2?
4f
3d
3s
3p
Which quantum number reveal information about the orientation of an orbital?
spin quantum number
magnetic quantum number
principle quantum number
none of these
What is the spin quantum number value of the electron present in the 2s1 orbital?
-1/2
-1
+1/2
+1
What is the azimuthal quantum number (l) value for the 4f orbital?
2
1
0
3
What are the possible ml values of 2p orbital?
+1,0,-1
0
+2,+1,0
0,-1,-2
