Respuesta :
Group 1 = Alkali metals
Group 2 = Alkaline earth metals
Group 3 = Lathanoids
Group 2 = Alkaline earth metals
Group 3 = Lathanoids
Group 1 = Alkali metals :)
Group 2 = Alkaline earth metals :P
Group 3 = Lathanoids :D
Group 2 = Alkaline earth metals :P
Group 3 = Lathanoids :D