問題一覧
1
Ru
Ruthenium
2
Technetium
Tc
3
Arsenic
As
4
Ruthenium
Ru
5
Y
Yttrium
6
Br
Bromine
7
Zr
Zirconium
8
Strontium
Sr
9
Bromine
Br
10
Ge
Germanium
11
Rh
Rhodium
12
Ga
Gallium
13
Zirconium
Zr
14
Kr
Krypton
15
Mo
Molybdenum
16
As
Arsenic
17
Selenium
Se
18
Gallium
Ga
19
Krypton
Kr
20
Rhodium
Rh
21
Rubidium
Rb
22
Nb
Niobium
23
Tc
Technetium
24
Rb
Rubidium
25
Germanium
Ge
26
Yttrium
Y
27
Sr
Strontium
28
Se
Selenium
29
Molybdenum
Mo