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Chemistry
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chromium
Mn
manganese
Fe
iron
Co
cobalt
Ni
nickel
Cu
copper
Zn
zinc
As
arsenic
Se
selenium
Br
bromine
Kr
kripton
Sr
strontium
Ag
silver
Sn
tin
I
iodine
Xe
xenon
Ba
berium
Au
gold
Hg
mercury
Pb
lead
Rn
radon