Chapter 8

 

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

 

____          1.   Each row in the periodic table ends with a _____.

a.

metal

c.

metalloid

b.

nonmetal

d.

noble gas

 

 

____          2.   In going from left to right in any given row in the periodic table, the size of atoms generally _____.

a.

increases

c.

stays the same

b.

decreases

d.

changes randomly

 

 

____          3.   When compared to the main group metals, transition metals have melting and boiling points that are _____.

a.

always lower

c.

about the same

b.

usually higher

d.

usually lower

 

 

____          4.   Transition elements, such as chromium, are likely to have _____.

a.

an oxidation number of 1+

c.

multiple oxidation numbers

b.

an oxidation number of 2+

d.

a negative oxidation number

 

 

____          5.   The two actinides used as nuclear fuels are uranium and _____.

a.

plutonium

c.

americium

b.

californium

d.

thorium

 

 

____          6.   The atoms of an element in Group 2 are _____ atoms of a Group 13 element in the same period.

a.

larger than

c.

the same size as

b.

smaller than

d.

impossible to compare with

 

 

____          7.   A metallic ion is _____ its corresponding atom.

a.

larger than

c.

the same size as

b.

smaller than

d.

impossible to compare with

 

 

____          8.   Bromine is a typical nonmetal. A bromide ion is _____ a bromine atom.

a.

larger than

c.

the same size as

b.

smaller than

d.

impossible to compare with

 

 

____          9.   Plants need the alkaline earth element _____ in photosynthesis.

a.

magnesium

c.

strontium

b.

calcium

d.

barium

 

 

____          10.  Group 13 elements tend to form _____.

a.

ionic compounds

c.

alloys

b.

covalent compounds

d.

metalloids

 

 

____          11.  Most transition metals have _____ oxidation state(s).

a.

no

c.

two

b.

only one

d.

multiple

 

 

____          12.  Which of the following elements is not in the iron triad?

a.

cobalt

c.

nickel

b.

copper

d.

iron

 

 

____          13.  Which of the following elements is not a coinage metal?

a.

copper

c.

platinum

b.

gold

d.

silver

 

 

____          14.  The inner transition elements are found in the _____ block of the periodic table.

a.

s

c.

d

b.

p

d.

f

 

 

Matching

 

Match each item with the correct statement below.

a.

alkali metal

b.

alkaline earth metal

c.

halogen

 

 

____          15.  An element found in Group 1 of the periodic table

 

____          16.  Sodium or cesium

 

____          17.  An element found in Group 17

 

____          18.  Magnesium or barium

 

____          19.  An element found in Group 2

 

____          20.  Astatine is the largest of this family

 

Short Answer

 

                  21.  Element 33 is in Group 15, Row 4 of the periodic table. Write the electron configuration for this element, and tell whether it is a metal, a nonmetal, or a metalloid.

 

                  22.  How do the atoms of elements 19 and 35 compare in size?

 

                  23.  How do the typical ions of elements 19 and 35 compare in size?

 

Choose the element from each of the following pairs that is more likely to react with the third element.

 

                  24.  Calcium or magnesium to react with chlorine

 

                  25.  Iodine or astatine to react with aluminum

 

                  26.  Oxygen or fluorine to react with magnesium

 

Tell where in the periodic table you would look for each of the following sets of elements.

 

                  27.  All elements have a configuration that ends with ns1.

 

                  28.  All elements have a configuration that ends with s2p5.

 

                  29.  All elements have 5f electrons but few or no 6d electrons.

 

Tell why each of the following newspaper headlines would raise questions or objections in the mind of someone who had just completed a high school chemistry course.

 

                  30.  "Plants grown in soil free of bacteria are found to be healthier."

 

                  31.  "FDA recommends that californium-252 be used as a preservative in cereals."

 

The graph in Figure 8-1 shows the quantities of the top ten chemicals produced for the United States in 1994. Use this graph to answer some of these questions.

 

 

                  32.  By how much did the number 1 chemical on this list exceed the number 2 chemical in terms of production quantity?

 

                  33.  Name one important use for the number 5 chemical on this list.

 

                  34.  What was the total weight of sodium compounds produced in 1994?

 

                  35.  What is the total weight of organic (carbon-containing) compounds in the list of the top ten chemicals in 1994?

 

 

Hosted by www.Geocities.ws

1