Please insist the signs of all these elements....hydrogen , helium , nitrogen , sulphur , carbon , phosphorus , chlorine , bromine , iodine , Sodium , Potassium , magnesium , calcium , aluminium, copper, Silver, Gold ,zinc, Ion ,Silicon ,Tin and mercury
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hydrogen - H
sodium - Na
magnesium - mg
aluminum - Al
iron - Fe
carbon - C
sodium - Na
magnesium - mg
aluminum - Al
iron - Fe
carbon - C
pandeykislay19:
and the others?
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