Answer
a. magnesium is a an Alkaline Earth Metal. This element is
a component of bones
b. copper is a transition metal. This element is needed for blood vessels, pressure and immune system
c. Iodine is a halogen. This element is important for thyroid function
d. sodium is an alkali metal. This element can be found in fluids outside cells and is important for water balance, muscle contraction and nerve impulses
Work Step by Step
To answer this question, you need to study the groups on the periodic table (figure 4.3) pages 106 and 107
group 1A -alkali metals
group 2A-Alkaline Earth metals
group 7A- halogens
groups 3B to 2B- transition elements
to know their importance, study table 4.4 on page 109
