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Chemistry
Pop Quiz: Orbital Notation
Name
Date
ID #
Score
1.
Which diagram correctly represents an atom of fluorine in an excited state?
$
$
$
$
1s
a)
b)
c)
d)
2.
$
"
$
$
2s
, ,,,
!
!
!
"
c) 3
d) 18
, ,++
b)
, ,))
c)
, ++)
d)
The total number of completely filled orbitals in an atom of nitrogen in the ground
state is
b) 2
c) 3
d) 5
Which orbital notation represents an atom of beryllium in the ground state?
a) 1s 2s
2p
z }| {
+ + ++)
6.
"
$
$
"
b) 10
a) 1
5.
$
$
$
$
3s
Which orbital notation represents the second principal energy level of a silicon atom
in the ground state?
a)
4.
$
$
$
$
2p
What is the maximum number of electrons that can occupy the third principal
energy level?
a) 8
3.
/
b) 1s 2s
2p
z }| {
, + +))
c) 1s 2s
2p
z }| {
, , )))
d) 1s 2s
2p
z }| {
+ ) +++
If eight electrons completely fill a principal energy level, what is the principal
quantum number of the principal energy level?
a) 1
b) 2
c) 3
d) 4
7.
8.
Which orbital notation represents an atom in the ground state with 6 valence
electrons?
a)
b)
c)
d)
Which atom in the ground state contains one completely filled p-orbital?
a) N
9.
c) He
d) Be
In an atom of lithium in the ground state, what is the total number of orbitals that
contain only 1 electron?
a) 1
10.
b) O
b) 2
c) 3
d) 4
Which orbital notation represents a boron atom in the ground state?
a)
b)
c)
d)
Acces format version 3.4Y
c 1997–2001 EducAide Software
Licensed for use by EducAide Software
Chemistry
Pop Quiz: Orbital Notation
Mr. Fong
11/15/00
Answer List
1.
b
2.
d
3.
a
4.
b
5.
c
6.
b
7.
b
8.
b
9.
a
2.
5.
8.
NY6 EH 3
NY6 EH 9
NY6 EH 15
3.
6.
9.
NY6 EH 5
NY6 EH 11
NY6 EH 17
10. b
Catalog List
1.
4.
7.
10.
NY6
NY6
NY6
NY6
EH
EH
EH
EH
1
7
13
19
Which formula represents an unsaturated
hydrocarbon?
Which is the general formula for an
aldehyde?
1.
1.
H
H
2 2
H−−C−−C−−H
2 2
H
H
H
H
3.
H
O
4.
22
R−−C−−O−−H
/
.
C==C
.
/
3.
2. R−−OH
O
R−−C−−H
H
2. H
22
O
22
R1 −−C−−R2
O
2 22
H−−C−−C−−OH
2
H
4.
H
O
H
2 22 2
H−−C−−C−−C−−H
2
2
H
H
Which functional group is found in all
organic acids?
Which general formula represents a ketone?
1.
1.
2
2
2.
H
4.
H
−−C−−H
2
−−C==O
2
2
−−C−−OH
H
3.
H
H
O
.
−−C
/
OH
22
2.
3. R−−OH
4.
O
R1 −−C−−R2
O
22
R1 −−C−−O−−R2
O
.
R−−C
/
OH
Chemistry
2nd Quarter Final
Ms. Geraghty
1/12/03
Record your answers on the sheet provided. Do not write on this exam. You may use your calculator and note
sheet as you complete the questions. The exam period will last 30 minutes.
1.
Atomic mass is measured in atomic mass units
(amu) that are based on an atom of
4.
(A)
16 O
equal to 16.000 amu
(F) network bonds between the molecules
(B)
32 S
equal to 32.000 amu
(G) hydrogen bonds between the molecules
(C)
12 C
equal to 12.000 amu
(H) linear structure of the molecules
(D)
14 N
equal to 14.000 amu
(J)
5.
2.
The unusually high boiling point of water is due
to the
Which piece of laboratory equipment should
be used to remove a heated crucible from a
ringstand?
nonpolar character of the molecules
What type of bonding is found in the molecule
HBr?
(A) ionic
(B) metallic
(F)
(C) nonpolar covalent
(D) polar covalent
(G)
(H)
6.
(J)
The properties of elements are periodic functions
of their
(F) mass numbers
(G) atomic masses
(H) atomic radii
(J)
3.
An atom in the ground state has 7 valence
electrons. Which electron configuration could
represent the outermost principal energy level of
this atom in the ground state?
7.
atomic numbers
(A) 3s1 3p6
What is the total number of electrons in an
atom with an atomic number of 13 and a mass
number of 27?
(B) 3s2 3p5
(A) 13
3s1 3p4 3d2
(B) 14
(D) 3s2 3p4 3d1
(C) 27
(C)
(D) 40
Page 2
8.
A neutral atom in the ground state contains
16 electrons. What is the total number of
electrons in the 2p sublevel?
13.
What is the total number of moles of hydrogen
in 1 mole of (NH4 )2 HPO4 ?
(A) 5
(F) 6
(B) 7
(G) 2
(C) 8
(H) 8
(J)
9.
(D) 9
16
A strontium atom differs from a strontium ion in
that the atom has a greater
(A) number of electrons
14.
A chemical cell differs from an electrolytic cell in
that the chemical cell uses
(B) number of protons
(F) half-reactions
(C) atomic number
(G) a solution of ions
(D) mass number
(H) an applied electric current
(J)
a redox reaction to produce electricity
10. All isotopes of which element in Group 16 (VIA)
are naturally radioactive?
(F) S
(G) Se
15.
(H) Po
When the pH of a solution is 8, what is the
OH− ion concentration in moles per liter?
(J)
(A) 1 × 10−6
Te
(B) 1 × 10−7
(C) 1 × 10−8
11. Adding a catalyst to a chemical reaction will
(D) 1 × 10−14
(A) lower the activation energy needed
(B) lower the potential energy of the reactants
(C) increase the activation energy needed
(D) increase the potential energy of the
reactants
16.
Which statement is true concerning the reaction
N(g) + N(g) → N2 (g) + energy ?
(F) A bond is broken and energy is absorbed.
12. What is the mass of 3.0 × 1023 atoms of neon?
(G) A bond is broken and energy is released.
(F) 1.0 g
(H) A bond is formed and energy is absorbed.
(G) 0.50 g
(J)
(H) 10 g
(J)
20 g
A bond is formed and energy is released.
Page 3
17. As an atom in the excited state returns to the
ground state, the energy of the atom
20.
Which particle has the greatest mass?
(F) an alpha particle
(A) decreases
(G) a beta particle
(B) increases
(H) an electron
(C) remains the same
(J)
18. The graph shown represents changes of state for
an unknown substance. What is the boiling
temperature of the substance?
21.
a neutron
Which radioisotope is used to diagnose thyroid
disorders?
(A) lead-206
(B) iodine-131
(C) cobalt-60
(D) strontium-90
22.
Given the nuclear reaction:
1
235
∨92 U +0
(F) 0 ◦ C
95
1
n →138
∨56 Ba +36 Kr + 30 n + energy
(G) 20 ◦ C
This equation can best be described as
(H) 70 ◦ C
(F) fission
40 ◦ C
(G) fusion
(J)
(H) natural decay
(J)
19. A gas has a volume of 1400 milliliters at
a temperature of 20 K and a pressure of
760 mm Hg. What will be the volume when the
temperature is changed to 40 K and the pressure
is changed to 380 mm Hg?
(A) 350 mL
23.
endothermic
A process in which large molecules are broken
down into smaller molecules is used commercially
to increase the yield of gasoline from petroleum.
This process is called
(B) 750 mL
(A) polymerization
(C) 1400 mL
(B) hydrogenation
(D) 5600 mL
(C) esterification
(D) cracking
Page 4
24. What is the original source of many textiles and
most plastics?
(F) coal
(G) wood
(H) petroleum
(J)
mineral ores
25. How many moles of a nonvolatile, nonelectrolyte
solute are required to lower the freezing point of
1,000 grams of water by 5.58 ◦ C?
(A) 1
(B) 2
(C) 3
(D) 4
Acces format version 3.4Y
c 1997–2001 EducAide Software
Licensed for use by EducAide Software
Chemistry
2nd Quarter Final
Ms. Geraghty
1/12/03
Answer List
1.
4.
7.
10.
13.
16.
19.
22.
25.
C
G
A
H
D
J
D
F
C
2.
5.
8.
11.
14.
17.
20.
23.
F
D
F
A
J
A
F
D
2.
5.
8.
11.
14.
17.
20.
23.
NY6
NY6
NY6
NY6
NY6
NY6
NY6
NY6
3.
6.
9.
12.
15.
18.
21.
24.
B
J
A
H
A
J
B
H
3.
6.
9.
12.
15.
18.
21.
24.
NY6
NY6
NY6
NY6
NY6
NY6
NY6
NY6
Catalog List
1.
4.
7.
10.
13.
16.
19.
22.
25.
NY6
NY6
NY6
NY6
NY6
NY6
NY6
NY6
NY6
AB 2
CD 16
EE 5
GA 12
IE 6
LA 8
ND 17
QB 3
SE 19
AF 26
CE 6
EG 14
HE 11
JD 55
LF 10
OB 9
RB 3
BA 5
EA 9
FA 19
IB 12
KD 10
MA 9
OD 4
RH 5