Hydrogen, Alkali Metals, and Alkaline Earth Metals (8.2.5)

Question 1

• The periodic table was constructed by placing elements in order by molecular weight and arranging them in columns by chemical reactivity.

Answer 1

• The periodic table was constructed by placing elements in order by molecular weight and arranging them in columns by chemical reactivity.

Question 2

• The periodic table can be broken down into metals, nonmetals, and metalloids.

Answer 2

• The periodic table can be broken down into metals, nonmetals, and metalloids.

Question 3

• Elements within the same group have similar reactivity.

Answer 3

• Elements within the same group have similar reactivity.