4.1 Write the symbols for the following elements:
copper
platinum
calcium
manganese
iron
barium
lead
strontium
4.3 Write the name for the symbol of each of the following elements found in the body:
C
Cl
I
Se
N
S
Zn
Co
Use the periodic table to classify each of the following elements by its group and period, group name (if any), and as a metal, a nonmetal, or a metalloid:
Na, important in nerve impulses, regulates blood pressure
I, needed to produce thyroid hormones
Si, needed for tendons and ligaments
Na (sodium), Group 1A (1), Period 3, is an alkali metal.
I (iodine), Group 7A (17), Period 5, halogen, is a nonmetal.
Si (silicon), Group 4A (14), Period 3, is a metalloid.
Strontium is an element that gives a brilliant red color to fireworks.
In what group is strontium found?
What is the name of this chemical family?
In what period is strontium found?
Is strontium a metal, a nonmetal, or a metalloid?
Group 2A (2)
alkaline earth metals
Period 5
a metal
4.7 Identify the group or period number described by each of the following:
contains C, N, and O
begins with helium
contains the alkali metals
ends with neon
4.9 Give the symbol of the element described by each of the following:
Group 4A (14), Period 2
the noble gas in Period 1
the alkali metal in Period 3
Group 2A (2), Period 4
Group 3A (13), Period 3
4.11 Identify each of the following elements as a metal, a nonmetal, or a metalloid:
calcium
sulfur
a shiny element
an element that is a gas at room temperature
located in Group 8A (18)
bromine
boron
silver
4.13 Using Table 4.4, identify the function of each of the following in the body and classify each as an alkali metal, an alkaline earth metal, a transition element, or a halogen:
Ca
Fe
K
Cl
4.15 Using the Chemistry Link to Health: Elements Essential to Health, answer each of the following:
What is a macromineral?
What is the role of sulfur in the human body?
How many grams of sulfur would be a typical amount in a 60.-kg adult?
