0
Q
Helium
A
He
1
Q
Hydrogen
A
H
2
Q
Lithium
A
Li
3
Q
Beryllium
A
Be
4
Q
Boron
A
B
5
Q
Carbon
A
C
6
Q
Nitrogen
A
N
7
Q
Oxygen
A
O
8
Q
Fluorine
A
F
9
Q
Neon
A
Ne
10
Q
Sodium
A
Na
11
Q
Magnesium
A
Mg
12
Q
Scandium
A
Sc
13
Q
Titanium
A
Ti
14
Q
Vanadium
A
V
15
Q
Chromium
A
Cr
16
Q
Manganese
A
Mn
17
Q
Iron
A
Fe
18
Q
Cobalt
A
Co
19
Q
Nickel
A
Ni
20
Q
Copper
A
Cu
21
Q
Zinc
A
Zn
22
Q
Gallium
A
Ga
23
Q
Germanium
A
Ge
24
Arsenic
As
25
Selenium
Se
26
Bromine
Br
27
Krypton
Kr
28
Rubidium
Rb
29
Strontium
Sr
30
Yttrium
Y
31
Zirconium
Zr
32
Niobium
Nb
33
Molybdenum
Mo
34
Technetium
Tc
35
Ruthenium
Ru
36
Rhodium
Rh
37
Palladium
Pd
38
Silver
Ag
39
Cadmium
Cd
40
Indium
In
41
Tin
Sn
42
Antimony
Sb
43
Tellurium
Te
44
Iodine
I
45
Xenon
Xe
46
Cesium
Cs
47
Barium
Ba
48
Lanthanum
La
49
Hafnium
Hf
50
Tantalum
Ta
51
Tungsten
W
52
Rhenium
Re
53
Osmium
Os
54
Iridium
Ir
55
Platinum
Pt
56
Gold
Au
57
Mercury
Hg
58
Thallium
Tl
59
Lead
Pb
60
Bismuth
Bi
61
Polonium
Po
62
Astatine
At
63
Radon
Rn
64
Francium
Fr
65
Radium
Ra
66
Actinium
Ac
67
Rutherfordium
Rf
68
Dubnium
Db
69
Seaborgium
Sg
70
Bohrium
Bh
71
Hassium
Hs
72
Meitnerium
Mt
73
Darnstadtium
Ds
74
Roentgenium
Rg
75
Cerium
Ce
76
Praseodymium
Pr
77
Neodymium
Nd
78
Promethium
Pm
79
Samarium
Sm
80
Europium
Eu
81
Gadolinium
Gd
82
Terbium
Tb
83
Dysprosium
Dy
84
Holmium
Ho
85
Erbium
Er
86
Thulium
Tm
87
Ytterbium
Yb
88
Lutetium
Lu
89
Thorium
Th
90
Protactinium
Pa
91
Uranium
U
92
Neptunium
Np
93
Plutonium
Pu
94
Americium
Am
95
Curium
Cm
96
Berkelium
Bk
97
Californium
Cf
98
Einsteinium
Es
99
Fermium
Fm
100
Mendelevium
Md
101
Nobelium
No
102
Lawrencium
Lr
103
Aluminum
Al
104
Silicon
Si
105
Phosphorus
P
106
Sulfur
S
107
Chlorine
Cl
108
Argon
Ar
109
Potassium
K
110
Calcium
Ca
