1.Contoh kelompok yg termasuk senyawa
2. Contoh kelompok yg termasuk unsur
Yg terbaik ya :)
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2. Besi, tembaga, alumunium, emas, perak, oksigen, hidrogen, karbon, nitrogen, belerang
2. unsur : hidrogen (H) , helium (He) , Litium (Li) , Beilium (Be) , Boron (B)