Name the elements which is in first group and third period of the periodic table
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The first period elements are Hydrogen & helium.
The third period elements are Na,Mg,Al,Si,P,S,Cl,Ar.
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Answer:
The first period elements are Hydrogen & helium.
The third period elements are Na,Mg,Al,Si,P,S,Cl,Ar.
Explanation:
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