Chemistry, 03.11.2020 21:40, Alex9089435028
Guys please help me, what is this element? a Gas at room temperature a Nonmetal and has no electrical conductivity completely unreactive and inert Has an average atomic mass that is 3.33 times greater than the standard for atomic mass( Carbon-12)
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Guys please help me, what is this element?
a Gas at room temperature a Nonmetal and has no electric...
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