Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
1.
|
The
idea of arranging the elements in the periodic table according to their chemical and physical
properties is attributed to a. | Mendeleev. | c. | Bohr. | b. | Moseley. | d. | Ramsay. | | | | |
|
|
|
2.
|
Mendeleev noticed that properties of elements usually repeated at regular intervals
when the elements were arranged in order of increasing a. | atomic
number. | c. | reactivity. | b. | density. | d. | atomic mass. | | | | |
|
|
|
3.
|
Moseley's work led to the realization that elements with similar properties occurred
at regular intervals when the elements were arranged in order of increasing a. | atomic
mass. | c. | radioactivity. | b. | density. | d. | atomic number. | | | | |
|
|
|
4.
|
Argon, krypton, and xenon are a. | alkaline earth metals. | c. | actinides. | b. | noble
gases. | d. | lanthanides. | | | | |
|
|
|
5.
|
The
periodic law states that the physical and chemical properties of elements are periodic functions of
their atomic a. | masses. | c. | radii. | b. | numbers. | d. | structures. | | | | |
|
|
|
6.
|
In
Period 3 there are 8 elements. What sublevel(s) is (are) being filled? a. | s | c. | s and
p | b. | s and d | d. | d and f | | | | |
|
|
|
7.
|
Within the p-block elements, the elements at the top of the table, compared
with those at the bottom, a. | have larger radii. | c. | have lower ionization energies. | b. | are more
metallic. | d. | are less
metallic. | | | | |
|
|
|
8.
|
Which
orbitals are characteristic of the lanthanide elements? a. | d
orbitals | c. | f
orbitals | b. | s orbitals | d. | p orbitals | | | | |
|
|
|
9.
|
The
most reactive group of the nonmetals are the a. | lanthanides. | c. | halogens. | b. | transition
elements. | d. | rare-earth
elements. | | | | |
|
|
|
10.
|
Which
represents a neutral atom acquiring an electron in an exothermic process? a. | A +
e– + energy ® A– | c. | A + e– ®
A– + energy | b. | A + e– ®
A– – energy | d. | A– + energy ® A +
e– | | | | |
|
|
|
11.
|
A
measure of the ability of an atom in a chemical compound to attract electrons is
called a. | electron
affinity. | c. | electronegativity. | b. | electron configuration. | d. | ionization potential. | | | | |
|
|
|
12.
|
Ionization energy is the energy required to remove ____ from an atom of an
element. a. | the electron
cloud | c. | an
electron | b. | the nucleus | d. | an ion | | | | |
|
|
|
13.
|
The
force of attraction by Group 1 metals for their valence electrons is a. | weak. | b. | zero. | c. | strong. | d. | greater than that for inner shell
electrons. | | |
|
|
|
14.
|
Which
response includes all the following that are properties of most metals, and no other
properties?
I. They tend to form cations.
II. They
are good heat insulators.
III. They have outer electronic shells that contain more than
four
electrons.
IV. They
tend to form ionic compounds when they combine with the
elements of Group VIIA.
a. | I, II, and
III
| c. | III and
IV
| b. | II, III, and IV
| d. | I and IV
| | | | |
|
|
|
15.
|
Which
of the following statements is false?
a. | The effective nuclear charge experienced by an electron in an
outer shell is less than the actual nuclear charge | c. | Electrons in inner shells screen, or shield, electrons in outer
shells from the full effect of the nuclear charge.
| b. | Within a family
(vertical group in the periodic table) of representative elements atomic radii increase from top to
bottom.
| d. | Transition
elements have larger atomic radii than the preceding IA and IIA elements in the same period because
transition elements have electrons in their d orbitals.
| | | | |
|
|
|
16.
|
Arrange the following elements in order of increasing atomic
radii.
K, Na, Mg, Cs, Cl
a. | Na < Mg < Cl < K <
Cs
| c. | Cs < K <
Cl < Mg < Na
| b. | Cl < Mg < Na < K <
Cs
| d. | Cl < Mg <
Cs < K < Na
| | | | |
|
|
|
17.
|
|