Question

Which gas is filled in an electric circuit?
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Answer 1

Caesium

Caesium, the most reactive metal in the periodic table, reacts extremely violently – hence why it can't be demonstrated in a classroom! This can be compared to other common metals, such as iron and copper, which produce no reaction when dropped into water.

Answer 2

inert gases like argon Krypton and also nitrogen. plz mark me brainlist and follow me