Level 10
Level 12
15 words 0 ignored
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Ga
Gallium
Ge
Germanium
As
Arsenic
Se
Selenium
Br
Bromine
Kr
Krypton
Rb
Rubidium
Sr
Strontium
Y
Yttrium
Zr
Zirconium
Nb
Niobium
Mo
Molybdenum
Tc
Technetium
Ru
Ruthenium
Rh
Rhodium
