Download THE PERIODIC TABLE ChapterTestA

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21. The category of elements that
is characterized by the filling off
orbitals is the
a. inner transition metals.
C. alkali earth metals.
b. alkali metals.
d. transition metals.
Class
THE PERIODIC TABLE
22. Electronegativity
a. generally decreases from left to
right across a period,
b. is the energy change that
accompanies the loss of an election from
a gaseous atom.
c. generally decreases from top to
bottom within a group.
d. is generally higher for metals
than for nonmetals,
— 23. Atomic size
generally
a. increases from left to right across
a period.
b. decreases from top to bottom within
a group.
c. remains constant within a
period.
ci. decreases from left to right across
a period.
ChapterTestA
A. Matching
Match each description in Column B with the correct term in Column A. Write the
letter of the correct description on the line.
Column A
Column B
1. metal
a. positively charged ion
2. halogen
b. an element whose highest occupied s or p sublevels
are partially filled
3. inner transition metal
c. the energy needed to remove an electron from an
atom in the gaseous state
4. representative element
ci. good conductor pf heat and electric current
5. ionization energy
e. an element whose highest occupied s sublevel and a
nearby d sublevel contain electrons
6. alkaline earth metal
7ãtiodJ
24. Of the following atoms, which one
has the smallest first ionization
energy?
a. boron
c. nitrogen
b. aluminum
d. silicon
25. The alkali metals do not include
a.Li.
b.Ca.
C. Questions
g. the tendency of an atom to attract electrons when
the atom is in a compound
8. electronegativity
ii. an element in which the highest occupied s and p
sublevels are filled
9. transition metal
L an element in Group 2A
10. noble gas
c.Na.
d.Rb.
Answer the following in the space provided.
26. For the elements whose electron
configurations end as follows, state the
period and the group to which each element
belongs.
L any nonmetal in Group 7A
—
___
2
5g
b. 4s
4
4
2
p
6p
2
c.6s
27. Write the configurations for the highest
occupied energy level for each of the following €
a.He
j. an element whose highest occupied s sublevel and a
nearbyfsublevel contain electrons
-
b. K
B. Multiple Choice
c.AI
Choose the best answer and write its letter on the line.
11. In the periodic table, there is a periodic pattern in the physical and
chemical properties of elements when they are arranged in order of
irreasxrgatomic mass
b. increasing e1ectronegativtry
c. increasing atomic radius.
ci. increasing atomic number.
d. Kr
e. 0
—
a. Cs,Li,K
b. Q,Si,RAr
12. WhIch sublevel corresponds to the transition metals in the periodic table?
c.d
a.s
d.f
b.p
13. The representative elements are
a. inner transition metals.
b. transition metals.
c. Group B elements.
ci. Group A elements.
c. Ca, Ba,Be,Sr
29. Tell whether each of the following
elements is an inner transition metal, a
noble gas,
an alkali metal, sri alkaline earth metal,
or a halogen. Then give its period and group
numbers
a. calcium
14. Which of the following elements is a metalloid?
a.As
c.Br
cLKr
b.Se
b. cesium
15. When a strontium atom loses two electrons to form an Sr
2 ion, the
electrons are lost from the
a. 5s orbital.
c. 3d orbital.
ci. 4forbital.
b. 5porbitaL
d. chromium
16. The element iodine, I, is a
a. periods alkali metal.
b. period 4 halogen.
c. period 5 halogen.
ci. period S transition metal.
17. The subatomic particle that plays the greatest role in determining the
physical and chemical properties of an element is the
a. proton.
c. election.
ci. photon.
b. neutron.
18. Which of the following atoms would you expect to have the largest
atomic radius?
c.Ca
a.I
U.
19. From left to right across the second period of the periodic table,
a. first ionization energy increases.
c. electronegativity decreases.
b. atomic radii increase.
ci. atomic mass decreases.
20. For which element would you expect a large jump between the first
and second ionization energies?
c.Fe
s.F
d.Na
bCa
c. fluorine
e. neon
L sliver
30. Which element in each pair has the
higher electronegativity value?
a.
Na, Mg
b. Rb,I
c. Cl,Br
D. Essay
Write a short essay for the following
31. Why does atomic size generally increase
as you move down a group of the periodic
table and