The Elements
Practice Test
1.
Which group contains elements known as "salt formers"?
a.
8A
b.
1A
c.
3A
d.
7A
2.
Which of the following statements is true of alkali metals?
a.
They do not readily conduct electricity.
b.
They do not easily lose valence electrons.
c.
They easily lose a valence electron.
d.
They are highly stable.
3.
Which of the following alkali metals is an important human nutrient?
a.
rubidium
b.
potassium
c.
cesium
d.
lithium
4.
The elements in group 1A are grouped together because they __________.
a.
all have one valence electron
b.
are all solids at room temperature
c.
are the lightest elements
d.
are all metals
5.
The most abundant noble gas on Earth is _________.
a.
neon
b.
krypton
c.
helium
d.
argon
6.
Many transition metals are valued in manufacturing because these metals ________.
a.
are non-conductors
b.
are strong and malleable
c.
are brittle
d.
are volatile
7.
An element or an inorganic compound that is found in nature as solid crystals is a __________.
a.
mineral
b.
salt
c.
trace element
d.
solution
8.
The majority of actinide elements are known as _________.
a.
coinage metals
b.
lanthanide elements
c.
halogen elements
d.
transuranium elements
9.
A lack of _______ can cause the thyroid gland to enlarge.
a.
iodine
b.
bromine
c.
fluorine
d.
chlorine
10.
Elements in group 7A are __________.
a.
alkali metals
b.
halogens
c.
noble gases
d.
alkaline earth metals
11.
For which trace element in the table is the recommended daily allowance lowest?
Supplement Contents
Per Tablet
Element
Amount
% DV
Calcium
161 mg
16%
Chromium
25 µg
20%
Copper
2 mg
100%
Iodine
150 µg
100%
Manganese
2.5 mg
125%
Magnesium
100 mg
25%
Molybdenum
25 µg
33%
Phosphorus
09 mg
111%
Potassium
40 mg
1%
Selenium
20 µg
28%
Zinc
15 mg
100%
a.
selenium
b.
calcium
c.
molybdenum
d.
copper
12.
All of the isotopes of _____ are radioactive.
a.
francium
b.
lithium
c.
potassium
d.
rubidium
13.
The chloride of ____________ is colorless.
a.
Co
2+
b.
Cu
2+
c.
Cr
3+
d.
Ca
2+
14.
Which of the following was the first trace element shown to be essential to human nutrition?
a.
iron
b.
zinc
c.
nickel
d.
aluminum
15.
Magnesium has more properties in common with aluminum than with calcium. What kind of relationship is demonstrated between these two elements?
a.
horizontal relationship
b.
diagonal relationship
c.
periodic relationship
d.
vertical relationship
