Periods : Elements in Rows , Horizontal , Energy levels , Become less metallic as they move across, Moves from left to right , Orbitals or shells, Groups : Elements in Families , Elements that are similar , Valence Electrons , Reactivity , Vertical , Columns ,

Characteristics of Periods and Groups

Tauler de classificació

Estil visual

Opcions

Canvia de fonament

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