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Activity : Tip-Top Game – Playing with Elements. By : Arnav Dhawan IX A.
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I HAVE CHOSEN ATOM.
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NOW I HAVE CHOSEN NUMBER 3 AND 4.
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NO. 3 IS HYDROGEN ITS ATOMIC NO. IS 3 ITS MASS NO. IS 1 IT HAS ONLY 1 VALENCE ELECTRON.
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NO. 4 IS OXYGEN ITS ATOMIC NO IS 8 ITS MASS NO IS 16 ITS SYMBOL IS O.
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THANK YOU!!.