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WorksheetsElectronic configuration
Total questions: 12
Worksheet time: 24mins
Which electronic transition occurs when a gaseous hydrogen atom in its ground state is ionized?
A. n = 1 → n = ∞
B. n = ∞ → n = 1
C. n = 2 → n = ∞
D. n = ∞ → n = 2
Electronic configuration of boron
1s2 3s2 2p1
1s2 2s2 2p1
1s2 2s5 2p1
1s1 2s2 2p2
Electronic configuration of Neon
1s1 2s2 2p7
2s2 2p2 2p6
1s4 2s4 2p2
1s2 2s2 2p6
What is incorrect about this orbital diagram?
Both arrows in the filled 2p box should be pointing the same direction
In the there should only be 1 arrow in the first 2p box and one in the 2nd 2p box
There is nothing incorrect with this diagram
All the arrows should be pointing the same direction.
Which one of the following is the electronic configuration of the bromine ?
A. [Ar]4s23d104p5
B. 1s22s22p63s23p5
C. 1s22s22p63s23p64s24p5
D. [Ar]3s23d103p5
How many orbitals are present in the n = 3 main energy level?
A. 12
B. 3
C. 9
D. 7
Which is the correct orbital diagram (arrows in boxes) for a carbon atom?
A
B
C
D
What is the electron configuration of a copper atom?
A. 1s22s22p63s23p63d9
B. 1s22s22p63s23p64s13d10
C. 1s22s22p63s23p64s23d9
D. 1s22s22p63s23p64s23d10
Which is the correct orbital diagram (arrows in boxes) for the 4s and 3d orbitals in the Fe3+ ion?
A
B
C
D
Which of the following is the electronic configuration for Mg2+ ion?
1s2 2s2 2p6
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p2
1s2 2s2 2p6 3s2
Which one of the following contains no unpaired electrons in the ground state?
Be
F
Si
N
Which are correct statements about the 2px orbital?
I. It is orthogonal (at 90o) to the 2py and 2pz orbitals.
II. It is at the same energy level as the 2py and 2pz orbitals.
III. It has a 'dumbbell' shape lying along the x axis .
A. I, II and III
B. I and III only
C. I and II only
D. II and III only
