ib exam

N12/4/CHEMI/SPM/ENG/TZ0/XX

88126104

CHEMISTRY standard level
Paper 1
Friday 9 November 2012 (afternoon)
45 minutes
INSTRUCTIONS TO CANDIDATES
• Do not open this examination paper until instructed to do so.
• Answer all the questions.
• For each question, choose the answer you consider to be the best and indicate your choice on

the answer sheet provided.
• The periodic table is provided for reference on page 2 of this examination paper.
• The maximum mark for this examination paper is [30 marks].

8812-6104

12 pages
© International Baccalaureate Organization 2012

8812-6104

21
Sc
44.96

20
Ca
40.08

38
Sr
87.62

19
K
39.10

37
Rb
85.47

22
Ti
47.90

23
V
50.94

41
Nb
92.91

12
Mg
24.31

11
Na
22.99

87
Fr
(223)

88
Ra
(226)

‡

†

89 ‡
Ac
(227)

90
Th
232.04

58
Ce
140.12

91
Pa
231.04

59
Pr
140.91

73
Ta
180.95

56
57 †
72
55
Ba
La
Cs
Hf
132.91 137.34 138.91 178.49

92
U
238.03

60
Nd
144.24

74
W
183.85

42
Mo
95.94

24
Cr
52.00

Relative atomic mass

Element

Atomic number

40
Zr
91.22

39
Y
88.91

4
Be
9.01

2

3
Li
6.94

1
H
1.01

1

29
Cu
63.55

30
Zn
65.37

93
Np
(237)

94
Pu
(242)

95
Am
(243)

96
Cm
(247)

97
Bk
(247)

98
Cf
(251)

61
66
62
63
64
65
Pm
Dy
Sm
Tb
Eu
Gd
146.92 150.35 151.96 157.25 158.92 162.50

75
80
76
77
78
79
Re
Os
Pt
Au
Hg
Ir
186.21 190.21 192.22 195.09 196.97 200.59

48
44
45
46
47
Cd
Ru
Rh
Pd
Ag
101.07 102.91 106.42 107.87 112.40

28
Ni
58.71

43
Tc
98.91

27
Co
58.93

26
Fe
55.85

25
Mn
54.94

The Periodic Table

50
Sn
118.69

32
Ge
72.59

14
Si
28.09

6
C
12.01

4

99
Es
(254)

100
Fm
(257)

67
68
Ho
Er
164.93 167.26

81
82
Tl
Pb
204.37 207.19

49
In
114.82

31
Ga
69.72

13
Al
26.98

5
B
10.81

3

101
Md
(258)

69