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Entry Task: Oct 22nd Monday
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Agenda
• Review Ch. 6-9
Clicker Questions
Chapter 6
What is the frequency of a wave which has a wavelength of 0.156 nm
5.2 x 10-10
1.92 x 109
0.468 x 108
1.92 x 10-9
25% 25%25%25%
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1. 5.2 x 10-10
2. 1.92 x 109
3. 0.468 x 108
4. 1.92 x 10-9
Which color of visible light has the least amount of energy per photon?
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Violet Blue
Yellow
Red
25% 25%25%25%
1. Violet2. Blue3. Yellow4. Red
As the principal energy level increases in an atom's orbitals, the average distance of an electron energy level from the nucleus ______________.
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Incre
ases
Decre
ases
stay
s the sa
me va
ries
25% 25%25%25%1. Increases2. Decreases3. stays the same4. varies
The probability map for an electron is called
An orbit
Electr
on confi...
orbita
l
Electr
on map
25% 25%25%25%
1. An orbit2. Electron configuration3. orbital4. Electron map
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A given set of f orbitals consists of ______________ orbital(s).
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3 5 7 9
25% 25%25%25%1. 32. 53. 74. 9
The maximum number of electrons allowed in each of the d orbitals is
2 4 8 18
25% 25%25%25%
1. 22. 43. 84. 18
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The maximum number of electrons allowed in the p sublevel of the third principal level is
2 6 8 18
25% 25%25%25%1. 22. 63. 84. 18
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Phosphorus has how many electrons in its outermost principal energy level?
2 3 5 15
25% 25%25%25%1. 22. 33. 54. 15
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The electron configuration for the sulfur atom is
1s22s2
2p63s23p...
1s22s2
2p63s23p...
1s22s2
2p63s5
1s22s2
2p63s23p...
25% 25%25%25%1. 1s22s22p63s23p2
2. 1s22s22p63s23p4
3. 1s22s22p63s5
4. 1s22s22p63s23p50of30
How many electrons are in the third principal energy level (n = 3) of one atom of Fe?
2 8 14 18
25% 25%25%25%1. 22. 83. 144. 18
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Clicker Questions
Chapter 7
The first Periodic Table was created by
Amadeo Avo
gadr..
.
Dmitr
i Mendele...
Henry
Mose
ley.
Ernest
Rutherf.
..
25% 25%25%25%1. Amadeo Avogadro.
2. Dmitri Mendeleev.
3. Henry Moseley.
4. Ernest Rutherford.
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The effective nuclear charge felt by an atom’s valence electrons (X) going from left to right and (Y) going down a column on the Periodic Table.
25%
25%25%
25%
X = increases Y... X = increases Y... X = decreases Y... X = decreases Y...
1. X = increases Y = increases
2. X = increases Y = decreases
3. X = decreases Y = increases
4. X = decreases Y = decreases0of30
The correct order of increasing atomic radius (smallest largest) is
Na < M
g < K < ...
Mg <
Na < K < ...
Rb < K < Na < ...
Rb < K < Mg <
...
25% 25%25%25%
1. Na < Mg < K < Rb.
2. Mg < Na < K < Rb.
3. Rb < K < Na < Mg.
4. Rb < K < Mg < Na.
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The statements below refer to ionic radii. Which statement is FALSE?
Br1– is la
rger...
Se2– is
larger..
.
K1+ is l
arger .
..
Na1+ is
larger..
.
25% 25%25%25%1. Br1– is larger than Cl1–.
2. Se2– is larger than Br1–.
3. K1+ is larger than Ca2+.
4. Na1+ is larger than K1+.
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Two ions are isoelectronic if they have the same
charge.
number of p
rot..
.
number of e
lec...
number of n
eut...
25% 25%25%25%
1. charge.
2. number of protons.
3. number of electrons.
4. number of neutrons.
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The minimum energy needed to remove an electron from an atom in its ground state is called the atom’s
potential ener..
.
activa
tion ene...
electron affi
n...
ioniza
tion ene...
25% 25%25%25%1. potential energy.
2. activation energy.
3. electron affinity.
4. ionization energy.
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The energy change that occurs when an electron is added to an atom is called the atom’s
potential ener..
.
activa
tion ene...
electron affi
n...
ioniza
tion ene...
25% 25%25%25%
1. potential energy.
2. activation energy.
3. electron affinity.
4. ionization energy.
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The correct order of increasing first ionization energy (smallest largest) is
Na < Ca < Al <
...
Na < Al <
Ca <...
Na < Al <
Sn <...
Ca < Na < Sn
<...
25% 25%25%25%
1. Na < Ca < Al < Sn.
2. Na < Al < Ca < Sn.
3. Na < Al < Sn < Ca.
4. Ca < Na < Sn < Al.
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The correct order of increasing electron affinity (most negative least negative) is
O < Cl <
B < C...
O < Cl <
C < B...
Cl < O
< C < B...
Cl < O
< B < C...
25% 25%25%25%1. O < Cl < B < C.
2. O < Cl < C < B.
3. Cl < O < C < B.
4. Cl < O < B < C.
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Most metal oxides form _______ solutions when dissolved in water.
acidic
basic
neutral
amphoteric
25% 25%25%25%
1. acidic
2. basic
3. neutral
4. amphoteric
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Most nonmetal oxides form _______ solutions when dissolved in water.
acidic
basic
neutral
amphoteric
25% 25%25%25%
1. acidic
2. basic
3. neutral
4. amphoteric
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A soft gray solid reacts with water to form a flammable gas and a basic solution. The solid is most likely to be a
noble gas.
halogen.
group IIA
meta
...
transiti
on met..
.
25% 25%25%25%
1. noble gas.
2. halogen.
3. group IIA metal.
4. transition metal.0of30
Ozone is an allotrope of which element?
hydroge
n
oxygen
sulfu
r
chlorin
e
25% 25%25%25%
1. hydrogen
2. oxygen
3. sulfur
4. chlorine
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Unknown solid X turns a Bunsen burner flame green and produces a purple color on reaction with NaOCl. X is
BaI2.
BaBr2
. Sr
I2.
d.SrBr2.
25% 25%25%25%
1. BaI2.
2. BaBr2.
3. SrI2.
4. d. SrBr2.0of30
The noble gases
are monato
mic.
have filled s .
..
are genera
lly ...
d.All o
f the a...
25% 25%25%25%
1. are monatomic.
2. have filled s and p subshells.
3. are generally unreactive.
4. d. All of the above.
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Clicker Questions
Chapter 8
The two types of chemical bonds commonly found in compounds are
doric and co
va...
ionic
and elec...
ionic
and cova..
.
electrolytic a
...
25% 25%25%25%
1. doric and covalent.
2. ionic and electrolytic.
3. ionic and covalent.
4. electrolytic and compound.
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The Lewis symbol for a sulfur atom includes how many dots?
5 6 7 8
25% 25%25%25%1. 5
2. 6
3. 7
4. 80of30
The octet rule states that atoms tend to gain, lose, or share electrons until they have _______ valence electrons.
5 6 7 8
25% 25%25%25%1. 5
2. 6
3. 7
4. 80of30
Which compound below has the largest lattice energy?
NaCl
KBr CaO CsI
25% 25%25%25%1. NaCl
2. KBr
3. CaO
4. CsI
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When a transition metal atom forms a +1 ion, it loses an electron from what type of orbital?
s p d f
25% 25%25%25%
1. s
2. p
3. d
4. f0of30
Which choice below correctly lists the elements in order of increasing electronegativity (least most) ?
C < N < O
< F
N < C < O
< F
N < C < F
< O
C < N < F
< O
25% 25%25%25%1. C < N < O < F
2. N < C < O < F
3. N < C < F < O
4. C < N < F < O0of30
Which choice below correctly lists the elements in order of increasing electronegativity (least most) ?
F < Cl <
Br < ...
F < Cl <
I < B...
I < Cl <
Br < ...
I < Br <
Cl < ...
25% 25%25%25%1. F < Cl < Br < I
2. F < Cl < I < Br
3. I < Cl < Br < F
4. I < Br < Cl < F0of30
The carbon disulfide (CS2) molecule has
25%
25%25%
25%
two single bonds. two double bonds. a single bond and... a single bond and...
1. two single bonds.
2. two double bonds.
3. a single bond and a double bond.
4. a single bond and a triple bond.
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The hydrogen cyanide (HCN) molecule has
25%
25%25%
25%
two single bonds. two double bonds. a single bond and... a single bond and...
1. two single bonds.
2. two double bonds.
3. a single bond and a double bond.
4. a single bond and a triple bond.
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The formal charge on the nitrogen atom in the nitrate ion (NO3
1–) is
2 1 0 –1
25% 25%25%25%
1. +2
2. +1
3. 0
4. –1
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The formate ion (HCO21–) is
stabilized by resonance, which suggests that the oxygen atoms’ formal charges are:
–1 and –1
0 and 0
–1 and 0
–1/2 and –1/2
25% 25%25%25%
1. –1 and –1
2. 0 and 0
3. –1 and 0
4. –1/2 and –1/20of30
Which molecule below violates the octet rule?
PF5 CH4 N
Br3 O
F2
25% 25%25%25%1. PF5
2. CH4
3. NBr3
4. OF2
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Which molecule below has an unpaired electron?
NO
NH3
BF3 PF5
25% 25%25%25%1. NO
2. NH3
3. BF3
4. PF5
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For atoms X and Y, the bond enthalpy of an X-Y bond is _______ the bond enthalpy of an X=Y bond.
25%
25%25%
25%
greater than less than equal to variable, dependi...
1. greater than
2. less than
3. equal to
4. variable, depending on X and Y
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For atoms X and Y, the bond length of an X-Y bond is _______ the bond length of an X=Y bond.
25%
25%25%
25%
greater than less than equal to variable, dependi...
1. greater than
2. less than
3. equal to
4. variable, depending on X and Y
0of30
Clicker Questions
Chapter 9
The overall shape of a molecule is determined by its
atoms.
bond angles.
Symmetry
.
electron affi
n...
25% 25%25%25%
1. atoms.
2. bond angles.
3. Symmetry.
4. electron affinity.
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If a central atom is surrounded by six electron domains, the term used to describe its fundamental geometry is
square
planar.
octahedral.
square
pyramid...
tetra
hedral.
25% 25%25%25%
1. square planar.
2. octahedral.
3. square pyramidal.
4. tetrahedral.0of30
The geometry of the methane (CH4) molecule is
linear.
trigo
nal bipyr..
.
trigo
nal plan
a...
tetra
hedral.
25% 25%25%25%
1. linear.
2. trigonal bipyramidal.
3. trigonal planar.
4. tetrahedral.
0of30
The geometry of the phosphorus trichloride (PCl3) molecule is
tetra
hedral.
trigo
nal plan
a...
pyramidal.
trigo
nal bipyr..
.
25% 25%25%25%
1. tetrahedral.
2. trigonal planar.
3. pyramidal.
4. trigonal bipyramidal.
0of30
The geometry of the bromine trifluoride (BrF3) molecule is
see-sa
w shaped...
trigo
nal plan
a...
pyramidal.
T-shaped.
25% 25%25%25%
1. see-saw shaped.
2. trigonal planar.
3. pyramidal.
4. T-shaped.
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The geometry of the xenon tetrafluoride (XeF4) molecule is
square
planar.
tetra
hedral.
see-sa
w shaped...
trigo
nal bipyr..
.
25% 25%25%25%1. square planar.
2. tetrahedral.
3. see-saw shaped.
4. trigonal bipyramidal.
0of30
Formic acid (HCO2H) has an O-C-O bond angle of (X) degrees and a C-O-H bond angle of (Y) degrees.
X = 180, Y = 1...
X = 120, Y = 1...
X = 180, Y = 1...
X = 109.5, Y =...
25% 25%25%25%1. X = 180, Y = 120
2. X = 120, Y = 109.5
3. X = 180, Y = 109.5
4. X = 109.5, Y = 109.5
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Which molecule is polar?
CH4 BBr3 SF
6 N
H3
25% 25%25%25%
1. CH4
2. BBr3
3. SF6
4. NH3
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Which molecule is nonpolar?
CO2 SO
2 IF3
IF5
25% 25%25%25%1. CO2
2. SO2
3. IF3
4. IF5
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The hybridization of the oxygen atom in a water molecule is
sp.
sp2.
sp3.
sp3d.
25% 25%25%25%
1. sp.
2. sp2.
3. sp3.
4. sp3d.
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The central atom of which molecule below is sp3 d-hybridized?
CH4 SO
3 Se
Br4
XeOF4
25% 25%25%25%1. CH4
2. SO3
3. SeBr4
4. XeOF40of30
A molecule of acetonitrile (CH3CN) contains _______ sigma bonds.
2 3 4 5
25% 25%25%25%1. 2
2. 3
3. 4
4. 50of30
A molecule of crotonaldehyde (CH3CH=CH-CH=O) contains _______ pi bonds.
1 2 3 4
25% 25%25%25%1. 1
2. 2
3. 3
4. 40of30
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