Basic HTML Version
4270
2
[Turn over
Section A
For each of the following questions only
one
of the lettered responses (A – D) is correct.
Select the correct response in each case and mark its code letter by connecting the dots
as illustrated on the answer sheet
1
Which one of the following represents the p electrons in an oxide, O
2–
ion?
A
B
C
D
2
Which one of the following represents the electronic configuration for a chromium atom in
its ground state?
A 1s
2
2s
2
2p
6
3s
2
3p
6
3d
3
B 1s
2
2s
2
2p
6
3s
2
3p
6
3d
6
C 1s
2
2s
2
2p
6
3s
2
3p
6
3d
5
4s
1
D 1s
2
2s
2
2p
6
3s
2
3p
6
3d
4
4s
2
3
Which one of the following represents the line emission spectrum of atomic hydrogen?
A
frequency
B
wavelength
C
frequency
D
frequency