The main-group elements are the forty-four elements that occupy groups 1A-8A of the periodic table. Main-group elements are important because of their high natural abundance both in the Earth's crust and in the human body and are commercially valuable.
Review the families containing main group elements. Identify all the characteristics that apply to the elements in family IA.
A)
They are highly reactive.
B)
They are shiny, soft metals.
C
The elements form +1 ions when forming compounds.
D)
The elements gain electrons when forming compounds.
E)
As you move down the family, number of valence electrons increases,