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Groups 1, 2 and 13-18 on the Periodic Table of Elements. This includes the elements; Li Na K Rb Cs Fr, Be Mg Ca Sr Ba Ra, B Al Ga In Ti, C Si Ge Sn Pb, N P As Sb Bi, O S Se Te Po F Cl Br I At, He Ne Ar Kr Xe Rn.

Hope that helps! I had the question on my science paper and looked it up 2! It was kinda difficult!

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10y ago

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