関連ワード:
what do the groups tell you on the periodic table what do the groups tell us on the periodic table what does groups tell you on the periodic table what do the groups tell us about an atom on the periodic table what do the groups/families tell you about the elements on the periodic table what does groups tell us in the periodic table what do the groups in the periodic table tell you about valence electrons what do the groups columns tell us about the representative elements on the periodic table what do the groups on the periodic table tell us about the elements in that group
