問題一覧
1
Cesium
Cs
2
Arsenic
As
3
Selenium
Se
4
Cadmium
Cd
5
Krypton
Kr
6
Gold
Au
7
Strontium
Sr
8
Zinc
Zn
9
Tin
Sn
10
Bromine
Br
11
Iron
Fe
12
Lead
Pb
13
Francium
Fr
14
Copper
Cu
15
Mercury
Hg
16
Xenon
Xe
17
Chromium
Cr
18
Nickel
Ni
19
Polonium
Po
20
Iodine
I
21
manganese
Mn
22
Cobalt
Co
23
Tungsten
W
24
Radium
Ra
25
Gallium
Ga
26
Barium
Ba
27
Silver
Ag